Via Gary Dzen:
Kevin Donovan, a Somerville resident who was a spectator Monday, heard what sounded like cannon fire. Walking over to the course, Donovan saw police officers run into the middle of the road holding their hands up to stop runners from proceeding. Runners asked spectators what was going on."
"They're freezing out there," said Donovan. "People were giving them coats."
Donovan said the stalled runners began to combine with the crowds walking back from Kenmore Square following the Red Sox game.
Lenox Hotel is being evacuated.
Globe photographer David L. Ryan, at the scene, reports that the first explosion occurred at the Marathon Sports store and sounded like a manhole cover had blown up. But then he smelled gunpowder. He said that explosion was very close to the bleachers set up on the sidewalk.
The next explosion occurred seconds later near a bank at the corner of Exeter. The third blast, which Ryan did not see but heard, happened near a firehouse at Hereford, the ladder street onto which runners turn from Commonwealth Ave. before they turn onto Boylston.
"My ears were ringing, my head's ringing," Ryan said. "Everyone was running like hell."
Boston Police are doing a sweep of Boylston Street right now, so many businesses are in lockdown and their employees cannot leave the buildings.
The Boston Police have called in all off-duty officers.
The Boston Police detonated something else. But there is no confirmation of what it was.
Channel 5 says third bomb detonated
ABC is reporting that Mass. General says that two people have died. Unconfirmed.