10.21am: Scotland Yard confirms there have been "multiple explosions" in London. 10.23am: British Transport Police confirm there has been an explosion on a bus in Tavistock Square. 10:26am: Scotland Yard confirm the bus blast, but do not know the cause of the explosion. 10:28am: London Fire Brigade says it had been called to reports of "explosions" at a number of locations in central London, including Aldgate, Edgware Road and Tavistock Square as well as to another incident at King's Cross. 10:39am: All London hospitals are put on major incident alert.
10:46am: A passenger on the train which exploded at Edgware Road reveals how he saw several bodies in the wreckage. 10:51am: London Ambulance Service confirms it is only sending ambulances to patients across the capital with life-threatening illnesses or injuries. 10:53am: Home Secretary Charles Clarke says the blasts have caused "terrible injuries". 10:56am: Commons leader Geoff Hoon tells MPs ministers were assessing and clarifying the situation. He confirms were emergency talks are ongoing about the explosions. 11:00am: Members of the public are told not travel to London following the blasts. 11:02am: Speaking outside 10 Downing Street, Mr Clarke confirmed that the COBRA civil emergencies committee of senior ministers had met and said police had taken "operational command" of the situation.
11:08am: All bus services in central London have been suspended, Transport for London announce. 11:12am: Charing Cross Road in central London is cordoned off between Cambridge Circus and Centre Point after a report of a suspect package at a bus stop. 11:16am: Metropolitan Police Commissioner Sir Ian Blair says there have been at least six explosions, but claims the picture is still " very confused". 11:24am: Mobile phone operators confirm networks are jammed as anxious callers attempt to contact loved-ones. 11:26am: President of the European Parliament, Josep Borrell, claims terrorists are behind the "co-ordinated series of attacks" and "confirmed deaths". 11:27am: Police sources at the scene at Aldgate say there are unconfirmed reports of two fatalities. 11:30am: Motorists outside the capital are warned not to enter by motorway signs, which read: "Avoid London Area closed Turn on radio".