Explosion Rocks Harvard Medical School Building, Investigation Underway

An intentional explosion occurred today at a Harvard Medical School building in Boston, Massachusetts, prompting an investigation but causing no reported injuries.

The incident took place at 18:50 EST on November 1, 2025, at the Vanderbilt Hall building, which houses administrative offices. Authorities responded to reports of the explosion and quickly determined it was not accidental. Investigators reported observing two individuals fleeing the scene immediately following the detonation, but they have not yet been apprehended.

“We are treating this incident as an intentional act and are working diligently to determine the motive and identify those responsible,” stated a spokesperson for the Harvard University Police Department. The building sustained some damage, but a preliminary assessment indicates it is largely contained to a specific area. This incident raises concerns about security protocols at academic institutions and potential disruptions to ongoing research.

The Federal Bureau of Investigation has been notified and is assisting with the investigation, alongside local and state law enforcement. Anyone with information regarding the incident is urged to contact the FBI or the Harvard University Police Department. For more information on campus safety, visit the Harvard University Police Department website.

Authorities are continuing to gather evidence and review security footage as the investigation unfolds.