Police: JFK library event a fire or explosion

Explosion at the Boston Marathon
Story here

There was also an expolsion at JFK Library

A third event just after 3 this afternoon at John F. Kennedy library is now being called either a fire or “an incendiary” device and it is too soon to say if it is tied to the explosions at the finish of the Marathon.

Boston Police Commissioner Edward Davis said earlier today “a third incident — explosion — was at the JFK Library” on Columbia Point. But he said that information could be “premature.”

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UPDATE: Fire at JFK library likely unrelated