Celebrities React To Boston Marathon Explosions (TWEETS) (UPDATES)

Stars are sending prayers to all those affected by the explosions during the Boston Marathon Monday afternoon.

The headquarters of the marathon are on lockdown following two explosions near the finish line, Reuters reports. The blasts occurred just before 3:00 p.m. ET.

Reportedly, two people have died and over 100 people have been injured.

UPDATE: Boston Police confirmed at a press conference that a fire broke out at the JFK Library at the University of Massachusetts, but it appears the incident is not related to the explosions.

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