Indonesian police have been questioning two people in connection with Saturday's suicide bombings on the tourist island of Bali.
The three bombs exploded within moments of each other at tourist spots on the Indonesian island.
Police believe radical group Jemaah Islamiah (JI) was behind the bombings at Jimbaran and Kuta.
Photos of the faces of the suspected suicide attackers have been published in local newspapers in an appeal to identify the gang responsible.
The attacks come nearly three years after bombs at two nightclubs killed 202 people in Kuta, among them many foreign tourists.
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This Have Your Say is now closed. Read a selection of your comments below.
The follow comments reflect the balance of opinion received so far:
It was a terrifying feeling as Kuta came to a standstill on Saturday night. Bars and nightclubs closed and half way through the concert on the beach had to be cancelled. Everyone stayed at their hotels that night in fear and to scared to walk the streets of Kuta. I flew out on Sunday night to Sydney and people couldn't get out of the country quick enough. Lee, Banny, Joe, Ani, Yama, Taufiq please be safe.
Jacky Pew, Swansea
It is with a heavy heart, that I have been seeing the tourists disappear off the streets in Kuta, as several governments have warned of further terrorist attacks. I hope that the Balinese people do not suffer any more, economically and physically, as they have been amongst the most welcoming of all peoples that I have met on my travels.
Matthew Pfaff, Kuta, Bali
Bali relies on tourism for there way of life but these terrorists are discouraging people from going there.
Daniel, Brisbane, Australia
I was in Bali this summer, living in a hotel in Kuta and working in Jimbaran Beach. I was devastated to hear about these bombs. The Balinese have worked so hard to encourage return tourism to Bali since the last bombings, and they were finally beginning to succeed. This is an amazing country with the most helpful and friendly people I have ever met. To not go to Bali is giving the terrorists what they want. I had an amazing time there and would go back tomorrow given the opportunity.
Michelle Dubbin, Oxford, UK
I returned back home to Bali yesterday and was happily surprised that the flight from Singapore was 80% full. Arriving at Ngurah Rai airport, there were lines at immigration and the usual buss outside arrivals. Driving home through Seminyak, I got held up in a traffic jam. This morning, it took me longer than usual to get to work; too many cars on the road. At work (I have a property company), we sold two houses, at full asking price. So the message is simple: people are staying, in droves, and it's business as usual. Take that, JI! Not even your murderous terror acts prevent people from loving Bali, this wonderful island of the Gods.
Nils Wetterlind, Bali, Indonesia
I was in Bali at the time of Oct 2002 bombings (though not at the bombed site at the specific time) and I can only say that Bali is an exemplary place of beauty, peace and kindness which is, unfortunately made victim of Muslim political radicalism. These terrorists wish to have the beautiful Bali (like all beautiful and peaceful places on earth) disappear. I had seen the Balinese people grieving, crying and praying after the 2002 bombings; I was touched very much by their grief and sensitivity.
Sissy Papagiannidi, Athens, Greece
Having returned from Bali on the 3rd of October I can say that the only down part of my time over there was the bombings on my final evening. Staying in Nusa Dus I was a few kilometres away from the affected areas but could see the pain in the locals faces when the news spread. Although most are very poor the people are diamonds in this gem-filled paradise and my heart goes out to them as well as to those who suffered directly on this terrible night of murder and mayhem.
Martin Fittall, Herne Bay, England
I have been in Bali four times, and I am due to go to Bali in the next two weeks. I must admit that I was shock at first when I heard this terrible news of second Bali attack, but I will never let those mindless perpetrators to ruin any parts of my normal life. My heart goes to Balinese people, and looking anxiously to meeting them very soon. May holy Hindu God be with you.
Nadda, Chiangmai, Thailand
This is very sad for not only the people of Bali but also those on Lombok - Bali's sister Island. We have just come back from Lombok last week and what nobody has mentioned is that what happens to the tourist trade on Bali affects Lombok and the effects are much worse as Lombok is normally only visited for just few nights by those tourists who have visited Bali.
Glen, Woking, UK
My husband and I had been toying with the idea of a trip to Bali early next year. Our minds were made for us after another pointless attack last weekend. The dignity and the celebration of life the Bali people have displayed in recent days has convinced us this is still our dream destination. And we will not be deterred by any terror group there, or anywhere else in the world.
Sharon Hughes, Portsmouth
We just arrived back from holiday in Bali last week and I feel so sorry for the lovely people of Bali who were just starting to get back on their feet following the incidents in 2002. I wish them well and hope the country can look forward to a safer future.
Karen Morris, Guildford England
I am an Australian and have been living in the UK for nearly two years, I'm about to leave and return home permanently and I have included a Bali stopover in my trip and I won't be changing those plans. This will be my sixth visit to the lovely island and anyone who has been there knows how important it is for their economy that we continue to holiday with the beautiful people of Bali, no where in this world is safe while we have these types of terrorists among us, I am so saddened and scared but I refuse to stop my way of life to hand them any kind of victory!
Donna Stephens, Whitchurch, England/Rye, Australia
I was in Bali this past January. It is a wonderful place, with such kind and gentle people. They are hurting immensely from the 2002 bombing and kept asking us to please tell people to come back to Bali. In spite of this latest bombing, I would still return. I live in a large American city, and quite frankly, I feel safer in Bali even with the bombs. There is more to Bali than Kuta Beach and Jimbaran. We must continue to support these people. They are innocent in these bombings and their livelihood depends on us.
Andrea, Atlanta, Georgia USA
My girlfriend and I are just back from two great weeks in Bali and having visited both places which have been devastated, my thoughts are with all of the Balinese people and those that have been affected. Having read the other comments it is clear that everyone had the same experiences as we did ie lovely, warm, hardworking people, living on a beautiful island, who don't deserve such mindless attacks. If anyone reading this is about to go to Bali my advice would be go. Bali needs you now more than ever.
Mark Davidson, Edinburgh, Scotland
I am a painter living less than 300m from the Jimbaran bomb blast. I have a fine art gallery less than 200m away. I fortunately cancelled my planned birthday dinner at the Jimbaran seafood cafes, the site of the bomb blast, as my mother was too tired to attend. We heard the bombs from my home on the hill overlooking the Jimbaran beach.
Are we convinced of our right to freedom and peace? I ask our two most powerful world leaders, George Bush and Tony Blair, in the name of those who died last night - what primary actions have you taken and not taken? How did this violence come to be?
Zante Gabriela-Alexandria, British living in Bali
I was in Kuta three months after the 2002 attack, determined to go no matter what. It was unsettling. Tourist numbers were down by 90% and the place resembled a ghost town. The contrast with the old, lively and busy Bali was unnerving. Sadly, I'm quite pessimistic about the future of Bali now. This is a terrible setback for the local people, who have worked so hard to get back on track after the first bombing. I wish them strength.
Stephanie, London, UK
I would like to know how I can help. Are any organisations looking for volunteers?
Katie Stones, Huddersfield, England
We recently returned from Bali and much to our surprise, we did not have to pass through Immigration or Customs when we entered Bali. A security officer waved us through, stating "They've gone home"!
Catherine Trencher, Boynton Beach, Fl. USA
We have moved to Bali recently to start a new life. The Balinese are a friendly fun-loving people, who make you feel welcome wherever you go. Speaking to them over the past few days, they can only ask what they have done wrong to deserve this. One thing they are sure of is that Bali will recover, and be stronger for it all.
Mike Teaney, Nusa Dua, Bali
My husband and I have just returned from our honeymoon in Bali and we could not have chosen a nicer place. Everywhere we went the Balinese people were so nice and welcoming to us. They catered for our every need and made our stay absolutely fantastic. We hired cabs to drive us around during the day and evening and we travelled quite a bit and trusted the taxi drivers/guides as they were all so honest and genuinely wanted us to have a nice time exploring their beautiful Country. I am truly saddened at what has happened. It's a real shame as Bali was just picking up again after the last bombing. I don't think people really know how the locals suffer at the hands of these suicide bombers. Obviously, I guess travellers will be reluctant to travel to Bali but please don't totally abandon going. It's so lovely and the Balinese people very warm and friendly.
Christine Williams, Luton, England
I was in Kuta, Bali in August with my family and found the people there were just so lovely and friendly. We spoke to one young waiter who told us the last bombings had devastated their tourist trade but they were just beginning to build back up again. This must be sole destroying for them. Our thoughts are with those people and those families of the victims.
Elsie Hodges, Bristol, UK
My wife and I returned from holiday in Bali three weeks ago - our third time there. Our hearts go out to the dead and injured but we feel very much for the people of Bali - the most welcoming and friendly people anywhere in the world. Don't stop going - they need our support and they need tourists to survive. Our thoughts and good wishes are with them and words cannot express how we feel about the mindless perpetrators of the carnage.
Keith Millar, Aberdeen, Scotland
I left Bali just over 10 days ago and I am shocked and saddened at what has happened. I was in Kuta Square just over two weeks ago and I noticed then that there was a lot of security around. The Balinese people are crying out for tourists to come back to the island, many locals asked us to come back next year and to bring our friends and family with us. The island has so much to offer and the people are amazing. We shouldn't let terrorists put us off travelling there - it is no different to going to London these days. I am hoping to go back in April and will not let these terrorists put me off.
Katie Clarke, Basingstoke, UK
Only a week ago we spent the most wonderful time at Jimbaran Beach and Kuta. The video and pictures we made will never be the same. There will always be a spot of sadness when looking at them. There is a lot of sorrow in me while thinking of those friendly Balinese people who need us tourist so much. There also is so much anger inside of me against those criminals who did this. On and on I am asking why?
Sukeirda, Amsterdam, Netherlands
I visited Indonesia in the month of September and spent a week in Bali, Kuta specifically, approximately 1 week prior to the most recent senseless attack. My eyes were opened upon witnessing the beauty and the kindness that I saw in the whole of Indonesia. I cannot quite absorb this fully yet. It leaves me with a feeling of powerlessness, and I struggle with my desire to help the people of Bali and all of Indonesia alike. Deeply saddened by witnessing the reality that the human race is prepared to destroy harmony and peace in such a way. My deepest condolences are with the country and people of Indonesia, and the families affected by all the related attacks.
Michael McCoy, New York, New York
I am a Balinese. It is a coincident that I was (in 2002) and I am now in the UK doing research when the blast occurred. I have a mix up feeling: sad, up set, and concern. I hope Bali and its people will become stronger. I do appreciate the supports that are addressed to Bali.
Arya Thanaya, Leeds, UK
I was in Bali when the terrorists attacked in 2002. Indeed, I lived only a few meters from the location of the bombing. This year bombing has certainly brought back our sad memory. I still remember very clearly how the Balinese people tried very hard to get back on their feet. A few months ago, my friend in Bali told me that Bali was busy again, tourism has lived again. Now, the terrorists attack again for the second time. I just hope that the Balinese people will be tougher.
Iyan Nurmansyah, an Indonesian living in Brighton
I'm due to go to Bali in January, and am more determined now than ever. Having lived with 30 years of terrorism in Northern Ireland, the only thing to do is to clear up the mess and rebuild even stronger. The people of Bali need our support now more than ever and I for one intend to give them mine.
David, London, UK
I am a British Ex-pat living and working in Indonesia. I was not aware of the blasts in Bali until I started receiving a flurry of telephone calls from the UK. It saddens me to learn that there are still people out there who intend on this mindless violence. Indonesia needs the support of foreign tourists, I have lived here seven years and must stress that this violence is not the general attitude of Indonesian people.
Anthony Clark, Jakarta, Indonesia
I arrived back in London on Saturday morning after my husband and I enjoyed our honeymoon on Bali. The sadness that I feel on hearing about the bombs can not be expressed in words. The consequences are much greater than the loss of innocent lives and serious injuries. The people of Bali are so welcoming and friendly and have feared the economic impact of more bombs. One example is a Baliense man who we became friends with called Eddie and his wife who both work in tourist surf shops. They are expecting their first child. Their family's future depends heavily on tourism, like so many other local people. My thoughts are with all those on the beautiful island of Bali.
Hayley Hanratty, London, England
I spent the last month of my travels in Bali before returning home in August and I left my heart there. The Balinese people need our support to help them back on their feet and they have my thoughts and prayers.
Natalie George, London
We left Bali two days ago to continue our travels to Malaysia. Our time there was so fantastic, the people so friendly and the island so beautiful...it is such a shame. While we were there we visited the memorial to those who lost their lives in the bombs of 2002...it is really upsetting to think that another memorial may have to be erected. One hopes that the spirit of the Balinese people will not be diminished by recent events our thoughts and prayers are with them.
Zoe Shaughnessy, London, England
I arrived back from Bali yesterday and had noticed that the security at our hotel at the Conrad had been stepped up towards the end of last week. Instead of the usual hotel security, there was an armed guard. The night before we left we went to PJ's at the Four Seasons Hotel at Jimbaran Beach, I can't believe that I was so close to what was going to happen the next day.
I also visited Kuta Beach several times and saw the area where the bomb went off, I know it would have been really busy with tourists at that time. My heart goes out to the Balinese as they were talking about how they felt that life was just starting to get back to normal after the 2002 bombing. They are the nicest people you could want to meet and they are so grateful to have tourism within their country, as it is the only form of income they have. I will say a prayer tonight for all the Balinese people.
Martine Alexander, Manchester, UK
I am deeply saddened by the news of the Bali blasts. My Husband and I returned from Bali almost two weeks ago. It is a beautiful, enchanting and captivating place. My heart goes out to all of Bali and its charming, warm and welcoming people.
Mrs Paula Warburton, Lincolnshire, England
This is clearly timed to coincide with the recent massive rise in the price of fuel in Indonesia: the bombers want to destabilise the country and shake faith in the president.
Martin Percy, Former long-term resident of Indonesia
I saw myself on one of your pics carrying an injured man into an ambulance. His name is Bruce and his wife had been injured and had already been rushed of to hospital. I was 2 tables away from the second explosion. After the first explosion on the beach, people were generally unsure as to what it was until the second explosion when the realization dawned on us that they were bombs. The effect caused a ripple of running people in all directions. The scene of total desolation was in place with whispers of help from people who had been injured a half buried in the sand. To think that 5 mins earlier the whole place was the busiest I had seen since coming here.
Mike Gallagher, Salisbury, UK
We need to have a central web site where loved ones can go when such tragedies occur to help reunite family members. I've come across a few but we need our governments to get behind the idea. Here is an example www.lookingforsurvivors.com
I am from England working here and I was out with me mates when we heard a big bang! We ran out side of the shop we were in and saw just destruction! People on the ground and blood everywhere!
Ryan, Kuta/EX England
I'm in Kuta now. Manic on the streets, no one really knows what's going on. I saw people running and crying. Police telling everyone where to go. All tourists have given up for the night, everyone trying to get internet access, nightspots are empty. There's an air of unease and unrest here.
George MacCallum, Greenwich, London
I left Kuta this morning due to a last minute change of plan. I feel a mixture of guilt and luck to have left just in time. My thoughts are with the local people who are re-living the horrors of the 2002 bombings and for all the injured.
Grainne Tierney, London, UK
I left Bali yesterday and am obviously shocked by the recent events in. What I think saddens me the most if how friendly and hospitable I found people in Indonesia and their eagerness for tourists to enjoy and return to their country. With two bombings in three years tourism and along with it a lot of livelihoods will be lost, and for this I feel for the people of Bali.
Sally Rice, Wickham, Hampshire
I live in the Kuta area and heard three explosions. One hit the Hard Rock Cafe area in Kuta. Another was in front of the Four Seasons beach resort in Jimbaran bay on the other side of the airport from Kuta. The third was apparently somewhere in the Nusa Dua resort area.
We were 40-50 meters away from the two explosions on Jimbaran beach in PJ's restaurant in the Four Seasons. We heard one loud explosion whereby everyone immediately stood up and thought the worst. It was followed by another about 25 seconds later. I believe they targeted a local open air fish market restaurant run by the Balanise with no security. We were the first out of there but saw two wounded by the roadside, one with shoulder and one with perhaps minor head injuries. The first explosion seemed weak and for a split second we wondered if it was a large firework. The second was slightly louder and we could see the smoke drift across the beach in front of us as people slipped from their tables on the beach to our right. Otherwise everyone seemed to be very rational, however I didn't witness events in the area of the immediate explosion. My sympathy to all involved.
Dan Delhomme, Stevenage, England
I was in Jimbaran bay when I heard two explosions closely follow by one another. I was at a restaurant called Ganesa at the time. There is massive traffic in Kuta. Still waiting for more details to flow in.
Robert Holmes, UK
I am an English ex-pat living and working in Indonesia. It is terrible to hear this news about another attack on innocent victims. However having lived in Jakarta for the past three years I must remind people that Indonesia is a safe place and the people are incredibly hospitable and warm. This is nothing more than a mindless attack from a crazed minority and not a reflection of Indonesians general attitude towards foreigners.
Jeremy, Jakarta, Indonesia
My heart goes out to the Indonesian people. Be sure that the hearts of the Australian people are with you and condemn these cowardly attacks on innocent people
Wayno, Melbourne Australia
We were having dinner just down the road from the Kuta explosion when it happened. The noise was deafening. Like a thousand fireworks going off at one time. People are still being transported to hospital from the site. It seems like chaos.
James Hughes, Jersey, UK