Explosion Timeline Revised

LONDON (AP) - Bombs that shook the city's subway system last week exploded within 50 seconds of each other and were made of high explosives, not homemade material, police said Saturday.

The three bombs went off nearly simultaneously at about 8:50 a.m. Thursday, said Deputy Assistant Commissioner Brian Paddick said, revising earlier accounts that they occurred within a 26-minute span. An explosion tore through a double-decker bus nearly an hour later.

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