
LONDON - JULY 21: Police officers with sniffer dogs patrol the back of University College of London Hospital on July 21, 2005 London. Three London underground train stations have been evacuated following the minor explosions which have hit the capitals transport networks. Warren Street, Oval and Shepherd Bush have all been targeted including a bomb detonated on a bus in Hackney. Reports have revealed there are no major casualties at this time. (Photo by Peter Macdiarmid/Getty Images)
Content © 2008 Getty Images All rights reserved