An explosion rattled the Harvard University Police Department-patrolled Goldenson Building at Harvard Medical School in Boston early Saturday, November 1, 2025. Authorities believe the blast was deliberate and have released images of two suspects seen fleeing the scene.
What Happened
Around 2:48 a.m., a fire alarm at the Goldenson Building on the Longwood medical campus triggered a response from police and fire officials. Boston Fire Department’s Arson Unit determined the explosion on the fourth floor appeared intentional.
A university police officer responding to the alarm observed two individuals running from the building before entering and locating evidence of the explosion. No one was injured and a subsequent sweep found no additional explosive devices.
Who Was Involved
At this stage, authorities have not identified any suspects. Surveillance images released show two persons with face coverings and hooded sweatshirts fleeing the building. The FBI and local law-enforcement agencies are assisting the Harvard University Police Department in the investigation.
Investigation Details
The Harvard University Police Department confirmed it is working in collaboration with federal, state and local agencies. While the device used has not been characterized in full, reports suggest it was not a conventional bomb. University officials say the building has been cleared aside from restricted access to the affected floor.
Public and Media Reactions
News of the blast caused concern across Harvard’s Longwood campus and beyond. Students and staff were advised to avoid non-essential entry to the building over the weekend. Meanwhile, the released photos and surveillance footage have been shared widely on social media as members of the public are asked to come forward with any information.
What Happens Next
Investigators continue to gather forensic evidence and review campus surveillance footage in the search for the suspects. The Harvard University Police Department has made a public appeal for tips, asking anyone with information to contact them at 617-495-1796. Meanwhile, the building’s operations are expected to resume once officials deem it safe.
This story may be updated with more information as it becomes available
