The Boston Police Departments reports two people were killed and at least 28 were injured in two explosions at the finish line of the Boston Marathon Monday afternoon.
The Boston Marathon says that bombs caused the two explosions heard near the finish line inside the Fairmount Copley Plaza Hotel and that organizers were working with authorities to determine what happened.
Organizers made the announcement on the groups' Facebook page on Monday.
Authorities have headed onto the course to carry away the injured while stragglers in the 26.2-mile race were rerouted away from the site.
One woman says she was waiting for her husband to cross the finish line, and, in her words, "it just blew." She described it as "a loud boom, and then glass everywhere." Cherie Falgoust says something hit her head, and she "just ducked."
A runner, Laura McLean of Toronto, says she heard two explosions outside the medical tent. She says, "There are people who are really, really bloody." McLean says, "they were pulling them into the medical tent."
The explosions took place about three hours after the winners crossed the finish line. The second one could be heard a few seconds after the first one.
A runner said, "There are a lot of people down."
Marathon workers were seen carrying one woman, who did not appear to be a runner, to the medical area as blood gushed from her leg.
Hayden Cardy told ABC News he heard the two explosions about five seconds apart. Jimmy Henderson told Local 10 the bomb squad performed a controlled explosion on a third device that was found near the hotel.