Some vague importance ..

A series of bomb attacks on London's transport network has killed more than 30 people and injured about 350 others. Three explosions on the Underground left 33 dead and an unknown number died in a blast on a double-decker bus.

The BBC's Frank Gardner said Arab sources said the blasts were probably the work of al-Qaeda. London's police chief said traces of explosive had been found at one site. Early reports had suggested a power surge could be to blame for explosions on the Underground but this was later discounted.

08:51 Seven people die in a blast on a train 100 yards from Liverpool Street station
08:56 21 people die in a blast on a train between Russell Square and King's Cross stations
09:17 Five people die in blast on a train at Edgware Road station
09:47 An unknown number die in a blast on a number 30 bus at Tavistock Place

Liberal Democrat MP Simon Hughes, near Kings Cross, told Five Live: "My only thought in the midst of all this confusion is that after the celebration of yesterday (for the Olympic 2012 London success) for people to be evil enough - if it is the intentional causing of death and injury - and think that they can justify this in any circumstances is completely unacceptable."

An Islamist website has posted a statement - purportedly from al-Qaeda - claiming it was behind the attacks. US President George Bush told reporters at the G8 Summit in Gleneagles that "the war on terror goes on."

All London Underground services & Bus services have resumed in central London (Zone One) with diversions in affected areas. Most mainline train stations are open. Hospitals have said they are no longer accepting non-emergency cases.

Source: BBC News