A timetable of G8-related events as they happened on Thursday 7 July:
2103: Prime Minister Tony Blair arrives back at Gleneagles after assessing the situation in London. He is expected to join fellow
world leaders for a summit dinner.
1915: Jack Straw announces that the summit communiqué on climate change, which was due on Thursday, will be delayed until Friday when it will be released with the communiqué on Africa.
1820: The prime minister's official spokesman says African leaders expected at the summit on Friday would continue to come.
1731: More than 250 Metropolitan and City of London police officers stationed in Scotland for the G8 summit return to London to help with the aftermath of the explosions.
1728: The stand-off at the Stirling camp site ends, with officers allowing people to move freely in and out.
1600: Central Scotland Police say the force will continue to form a security cordon around the eco-campsite in Stirling.
1558: Foreign Secretary Jack Straw arrives at the G8 summit at Gleneagles. He will chair a late afternoon session of the world leaders while Tony Blair is in London.
1530: Protesters at the eco-campsite in Stirling try to march as police use loud hailers to warn them they will be arrested if they do not disperse.
1520: First Minister Jack McConnell sends Scotland's condolences to the families of those injured and killed in the London transport network blasts.
1440: Twenty eight people appear at Edinburgh Sheriff Court following an unplanned march by G8 protesters who were unable to travel to Gleneagles to protest.
1425: First ScotRail cancels all sleeper services from Glasgow, Edinburgh, Inverness, Aberdeen and Fort William to Euston station following the London bombings.
1350: Making a statement to world media, President George Bush said: "The war on terrorism goes on. I was most impressed by the resolve of all the leaders in the room. Their resolve is as strong as my resolve."
1346: A small group of protesters who had approached the summit security fence are escorted peacefully away by police.
1325: Tony Blair leaves Gleneagles in a Chinook helicopter to return briefly to London.
1256: Armed police patrol the streets of Auchterarder following the London bombings.
1250: Police monitoring a campsite in Stirling housing G8 protesters say they have recovered a number of weapons including knives, metal poles and a can of CS spray.
1215: Prime Minister Tony Blair says he will leave the G8 summit at Gleneagles to fly to London to be updated on what is thought to have been multiple terrorist attacks. He will return to Scotland on Thursday evening.
1145: Police withdraw a security cordon around an eco-campsite which is housing about 1,000 G8 protesters in Stirling.
1105: Commanders in charge of policing the G8 summit consider how many specialist officers can be released to assist the emergency operation in London following explosions in the city.
1045: The Crown Office says 342 G8-related arrests have been made since last Friday.
0815: Five anti-war protesters gather at the entrance to an engineering company, Weir Pumps, in Cathcart, Glasgow.
0800: Police wearing their normal soft hats allow people to leave the site one-by-one.
Early hours of the morning: Police throw a security cordon around an eco-campsite housing about 1,000 G8 protesters in Stirling.
Dozens of riot police cut off the site in an effort to avoid a repeat of the violent clashes witnessed on Wednesday.
Tayside Police said only protesters who co-operate with officers would be allowed to leave the campsite.