By Anna Gouldman
There have been a series of attacks in the form of explosions on the London transport system this morning.
So far six blasts hit the underground network and police reported that at least three explosions on buses in the city.
All London hospitals are on major alert. Reports are very sketchy about injured and fatalities but there are said to be many casualties.
Londoners have been advised to stay where they are.
A huge emergency operation has swung into action. The London underground has been shut down completely.and there are no buses in zone one.
At Liverpool Street station, there are said to be walking wounded with blackened faces wondering through the streets.
Arab sources have told the BBC that they believe the attacks are almost certainly the works of Al Qaeda.