BOSTON Two explosions shattered the euphoria of the Boston Marathon finish line on Monday, sending authorities out on the course to carry off the injured while the stragglers in the 26.2-mile trek from Hopkinton were rerouted away from the smoking site of the blasts.
Play Video
[h=3]Scene at moment of Boston Marathon explosion[/h]
A U.S. official says at least a dozen people were injured with no confirmed fatalities, CBS News correspondent Bob Orr reports.
WBZ-TV says the medical tent near the end of the marathon course has been filled with many people who have been "gravely injured."
Daniel Lampariello, a college student who was at the finish line, told CBSNews.com that people were trampling each other after the pair of explosions.
"It sounded like a large firework or M-80," he said.
Competitors and race organizers were crying as they fled the chaos. Bloody spectators were being carried to the medical tent that had been set up to care for fatigued runners.
"There are a lot of people down," said one man, whose bib No. 17528 identified him as Frank Deruyter of North Carolina. He was not injured, but marathon workers were carrying one woman, who did not appear to be a runner, to the medical area as blood gushed from her leg. A Boston police officer was wheeled from the course with a leg injury that was bleeding.
About three hours after the winners crossed the line, there was a loud explosion on the north side of Boylston Street, just before the photo bridge that marks the finish line. Another thunderous explosion could be heard a few seconds later.
WBZ reports one blast blew out the windows of a Marathon Sports store on Boylston Street.
There were two "incredibly powerful explosions just seconds apart," according to WBZ-TV's Lis Hughes.
Runner Laura McLean of Toronto said she heard two explosions outside the medical tent.
"There are people who are really, really bloody," McLean said. "They were pulling them into the medical tent."
Cherie Falgoust was waiting for her husband, who was running the race.
"I was expecting my husband any minute," she said. "I don't know what this building is ... it just blew. Just a big bomb, a loud boom, and then glass everywhere. Something hit my head. I don't know what it was. I just ducked."
[h=3]Scene at moment of Boston Marathon explosion[/h]
A U.S. official says at least a dozen people were injured with no confirmed fatalities, CBS News correspondent Bob Orr reports.
WBZ-TV says the medical tent near the end of the marathon course has been filled with many people who have been "gravely injured."
Daniel Lampariello, a college student who was at the finish line, told CBSNews.com that people were trampling each other after the pair of explosions.
"It sounded like a large firework or M-80," he said.
Competitors and race organizers were crying as they fled the chaos. Bloody spectators were being carried to the medical tent that had been set up to care for fatigued runners.
"There are a lot of people down," said one man, whose bib No. 17528 identified him as Frank Deruyter of North Carolina. He was not injured, but marathon workers were carrying one woman, who did not appear to be a runner, to the medical area as blood gushed from her leg. A Boston police officer was wheeled from the course with a leg injury that was bleeding.
About three hours after the winners crossed the line, there was a loud explosion on the north side of Boylston Street, just before the photo bridge that marks the finish line. Another thunderous explosion could be heard a few seconds later.
WBZ reports one blast blew out the windows of a Marathon Sports store on Boylston Street.
There were two "incredibly powerful explosions just seconds apart," according to WBZ-TV's Lis Hughes.
Runner Laura McLean of Toronto said she heard two explosions outside the medical tent.
"There are people who are really, really bloody," McLean said. "They were pulling them into the medical tent."
Cherie Falgoust was waiting for her husband, who was running the race.
"I was expecting my husband any minute," she said. "I don't know what this building is ... it just blew. Just a big bomb, a loud boom, and then glass everywhere. Something hit my head. I don't know what it was. I just ducked."