It is still unclear how many people have been killed or injured in this morning's London bomb attacks.
There were reports of up to 20 fatalities, but this figure has not been confirmed.
Survivors of explosions at Edgware Road station and between Aldgate and Liverpool Street reported seeing piles of bodies. Police at the scene of the bus blast also said several people had died
CNN television said at least 10 people were killed in an explosion at King's Cross station. It said one of its producers at the scene had been told of "double-digit fatalities".
Police said two people were killed in the explosion at the Aldgate East underground station. A doctor at the station said at least 90 people were wounded in the blast.
The Royal London Hospital in the east of the capital said 95 people were being treated, seven of them in a critical condition and 10 serious.
It was not clear how many of them had been brought in from Aldgate. St Mary's Hospital in west London said 80 wounded had been brought in, four of them critical and nine serious.
Officials said the casualties were believed to have come from a blast at Edgware Road underground station in East London.
Other hospitals said they had received wounded but declined to give numbers.