The Harvard University Police Department says that an unidentified man called them with a chilling claim: that he was armed and had planted numerous bombs around campus.
Police responded to the locations the man mentioned in his call, and evacuated the buildings, but he was not located.
The situation is currently being investigated, and suspicious packages have been located on Prescott Street, Harvard Science Center, and Harvard Yard.
There were reports of a man with an assault rifle at the science center, but he has not been located.
One person on Twitter claims it is a hoax, and says he was the caller, but the validity of his claims has not been verified. The account was created less than an hour before the threats were called in: