1 of 10
A forensic officer searches the wreckage of a double-decker bus with its top blown off in Tavistock Square.

2 of 10
Blood stains a wall in the area around the wreckage at the junction of Tavistock Square and Woburn Place.

3 of 10
A medic runs towards the scene of the bomb blast to treat survivors.

4 of 10
A couple are re-united near the bus bomb blast.

5 of 10
An injured Tube passenger is escorted away from Edgware Road station.

6 of 10
Shocked commuters walk away from the station.

7 of 10
The walking wounded are treated at the London Hilton Metropole on Edgware Road.

8 of 10
New York City Police Department Emergency Service Unit officers keep watch in front of the Cortlandt Street subway station at the World Trade Center site.

9 of 10
US citizen Geoffrey Forman, just back from a visit to London, places flowers on the steps of the British Embassy in Washington, DC.

10 of 10
Around midnight a construction worker bowed his head in prayer outside King's Cross station.