Four blasts tore through London's transport system during the morning rush hour in a choreographed series of terrorist attacks.
Police said at least 33 people were killed, 21 near King's Cross station, and the ambulance service said it had treated around 350 people, with more than 40 of those in a serious condition.
Three of the blasts were on tube trains and a fourth was on a bus. Explosives were said to have been found at two blast sites.
