Toll From London Bombing Raised Above 50

Death Toll From London Bombs Raised to More Than 50; Reluctant Commuters Return to Underground

Commuters in London reluctantly descended into the Underground Friday morning, but buses and subways carried fewer riders than normal in the aftermath of four rush-hour blasts. Police raised the death toll to more than 50 and said each of the bombs contained less than 10 pounds of explosives.
Investigators said they would look for evidence in the debris from Thursday's attacks and in the video footage from some 1,800 cameras in London's train stations.