BOSTON GLOBE, TWITTER, CNN, REUTERS
BOSTON - Two explosions near the finish line at the prestigious Boston Marathon on Monday have killed at least two people and left dozens injured.
During a news conference late Monday afternoon, Boston Police Commissioner Ed Davis said a third explosion was registered at the John F. Kennedy Presidential Library and Museum, and was treating the situation as “an ongoing event,” Reuters reports.
Police are investigating the source and possible motives of the blasts amidst speculation about potential terrorist plots. The Boston Globe was reporting as many as 100 injuries.
The explosions occurred more than four hours after the start of the race, as a stream of runners were still finishing the 26-mile (42 kilometer) contest.
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President Obama receiving updates on Boston before addressing the nation (White House)
In addition to first responders in Boston, the Federal Bureau of Investigation is responding to the explosion. There were conflicting reports about whether police had a suspect in custody.
The Boston Marathon, considered by many to still be the most storied road race, has been held since 1897, and is known for its difficult course through the hilly streets of the historic Massachusetts city.
The moments before, during and after the explosions, from Boston Globe
Aftermath from CNN