By EILEEN SULLIVAN
WASHINGTON (AP) - An intelligence bulletin issued to law enforcement includes a picture of a mangled pressure cooker and a torn black bag that the FBI says were part of a bomb that exploded during the Boston Marathon.
The bulletin was obtained by The Associated Press.
The FBI says it has evidence that indicates 1 of the bombs that exploded in the Boston Marathon was contained in a pressure cooker with nails and ball bearings, and it was hidden in a backpack.
The FBI says the other explosive was in a metal container, but there wasn't enough evidence to indicate that it was a pressure cooker.
It was not known what was used to set off the two explosives that killed three people Monday and injured more than 170 others.