Students evacuated Harvard’s Science Center, Sever, Emerson and Thayer Halls in response to an emailed bomb threat to the Cambridge Police Department at approximately 12:30 p.m. on Monday, according to the Harvard Crimson.
Local officers, detectives and bomb squad specialists restricted access to Harvard Yard and conducted searches for several hours on the four buildings, according to the Harvard Crimson.
Local law enforcement deemed the buildings “safe” and re-opened all four by about 5:30 p.m.
The investigation into the source of the threat is ongoing.
“The most important thing is our students’ safety and wellbeing,” Harvard's Dean of the College Rakesh Khurana said in an interview with the Crimson.
Other Massachusetts schools and colleges, including Cambridge Public Schools, Fitchburg State University and Cape Cod Community College, have also received unconfirmed bomb threats since Sunday.