Update — Tuesday, Nov. 17, 6 p.m ET: Eldo Kim, a 20-year-old student was arrested Tuesday for allegedly calling in false bomb threats.
An hour later, Cambridge Police confirmed that they were investigating the bomb threat and evacuating the four buildings named in the emergency alert.
There were no reports of explosions.
The bomb threat was called in the midst of this semester's final exams.
Many on Twitter instantly began speculating that the bomb threat was a hoax.
Harvard's on-campus newspaper The Crimson reported that students began applauding when the announcement was made.
By 3 p.m. Monday, the four buildings evacuated were cleared and reopened to students and faculty.
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