A deliberate explosion damaged a Harvard medical building causing no injuries; FBI and local police are investigating.

An intentional explosion occurred at a Harvard University medical building on November 1, 2025, in a non-occupied area, causing structural damage but no injuries. Authorities confirmed the blast was deliberate, not accidental, and are investigating the motive with no group claiming responsibility. The building was evacuated, and FBI and local law enforcement are collaborating on the case. No fire or hazardous material release occurred, and the university said safety is the priority, with operations expected to resume after the investigation.