Iranians are contacting the BBC in defiance of a warning from their foreign ministry not to get in touch with the BBC, which it labels an "enemy" of the state. The majority of people contacting BBC Persian and BBC News are opposition supporters - so we would like to hear from those supporting the government. Below is a selection of comments from BBC users in Iran.
'DAVID', central Tehran, by 'phone
I've come back from work early because I heard there might be a march to mourn Neda, the girl who was shot dead on Saturday.
I live close to Haft-e Tir Square in central Tehran, and my work is just 15 minutes drive away so I wanted to get home as fast as I could.
Police were tapping batons against their legs, it's so intimidating
On every corner and by every set of traffic lights there were half a dozen riot police with truncheons and shields.
They stood there, tapping their batons against their legs - it's so intimidating. There were no demonstrators. I can hear a helicopter flying overhead.
I've been pretty depressed since Friday afternoon and hearing that lunatic's sermon [Friday prayers addressed by Ayatollah Khamenei].
The last demonstration I went on was last Wednesday. After 10pm you start hearing the roars from the rooftops. I went up a couple of times to shout "Allaho Akbar" even though I'm Christian! My mother told me not to bother and to come down.
I hope as long as these shouts continue on on a nightly basis, the world will understand our thirst and hunger for change.
Ramin, Tehran, by 'phone
I voted for Mir Hossein Mousavi, but I wasn't fundamentally anti-Ahmadinejad in the first place. He's made some mistakes, but this isn't about the candidate now, it's about what happened after the vote.
The election was an absolute coup d'etat. It wasn't even vote rigging, it was a pre-planned coup.
That's why I'm disappointed and angry; I don't want a return to the coup days. I thought the system the Islamic Republic had created allowed movement for reform. But the so-called election took away that hope.
I think there's a huge sense of disappointment and rage. You can hear this at 10pm, when you hear people shouting from the bottom of their hearts on the rooftops. You can also hear their depression.
Afshin, Tehran, by email
Afshin took this video of protestors in Tehran on Saturday
I have never voted in this regime's elections. I have been demonstrating in all the protests and you can hear me shouting on the roofs at night between 10-11pm.
My work has always put me in danger, I work in experimental theatre and we often cross political boundaries.
I took this video on Saturday. Military forces didn't allow people to join the main crowds on Azadi Street so we gathered on streets nearby.
I think we should fight peacefully against the regime, even when they turn violent.
Behrooz, Tehran, by 'phone
My mother went to the demonstration on Saturday. She wasn't hurt, but she saw guards attacking people and hitting them with batons.
She is the bravest of us all, but I don't think she will go out this afternoon, because the clashes are getting bloodier every day. She is in her 50s and guards don't generally attack women her age. If they saw me, they would go for me.
If you are scared to go to the demonstrations by day, you can go on the roofs at night. At about 10pm the shouting starts.
We shout "Allaho Akbar" to show our protest at the results. In our apartment block there are just three families, last night all three families were on the roof shouting. But with tension rising, some stay at home.
Emails sent to BBC News
I think the reason there are fewer demonstrations in Esfahan and other smaller cities is that the people can be easily identified by the Basijis and the police and they will be hunted down later on. I took part in some of the demonstrations and realized that - even in large numbers - unarmed people cannot resist the tear gas and the batons the police and the Basijis are using against them. A few days ago I saw a young boy being beaten really hard by five or six Basijis till he fainted, with blood coming out of his nose and mouth. Hossein, Esfahan
We Iranians do know that statements like "The West is supporting the demonstrators ..." are an excuse for our governments to extinguish the protests. For 30 years now they have been talking about the "enemy", but now the world can see that the Iranian government looks at its own people as enemy. Omid, Kerman, Iran
I took part in most of these demonstrations to protest against the largely fraud in presidential election. Before this event I had great trust on the power in Iran and i had respect for ayatollah Khamenei. But after the last Friday speech of Khamenei I lost all my hope from the structure of power in Iran and I became separate from government for the first time in my life. I am 30 years old and I took part in almost all elections in Iran up to now. but at the moment I don't trust Iran government and leader and all the structure of power in Iran. Vahid B, Tehran
I am a bit scared. But I think we should keep going. We go to rooftops for shouting Allaho Akbar because we have no options. If we go to the streets they kill us. But I know many brave people go to the streets without fear of death. God bless all those martyrs. Shalimar, Tehran
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