(USA TODAY) -- At least three death and many injuries were reported Monday after two explosions ripped through the crowd at the finish line of the Boston Marathon.
Fox News quoted a law enforcement source as saying at least three people had died. The Boston Herald reported at least a dozen injuries
Witnesses said the blasts occurred in quick succession about 2:50 p.m. on Boylston Street near the intersection of Exeter Street, three hours after the winner had crossed the finish line. Some store fronts were blown out.
Bloodied spectators were carried to medical tent intended for runners. Several of the injured has lost limbs, and at least one police officer was hurt.
Organizers immediately stopped the race and lock down the marathon headquarters.
The elite women runners started the race at 9:30 a.m. and the elite men followed about 30 minutes later. About 27,000 runners were in the field for the Patriots Day race.
"There are a lot of people down," one man, whose bib No. 17528 identified him as Frank Deruyter, told the Associated Press.