11/02/2025
Explosion at Harvard Medical School Building Appears Intentional
Boston, MA - November 1, 2025
An early morning explosion inside a Harvard Medical School building in Boston is being investigated as an intentional act, police said. No injuries were reported.
The blast occurred around 2:48 a.m. on the fourth floor of the Goldenson Building at 220 Longwood Avenue. A Harvard University Police officer responding to a fire alarm saw two people running from the building but was unable to stop them.
Investigators later released surveillance images showing the suspects with their faces covered and are asking for the public’s help identifying them.
The Boston Fire Department’s Arson Unit determined the explosion appeared intentional. Boston Police officers swept the building but found no additional devices.
The FBI confirmed it is assisting Harvard Police, along with state and local authorities, as the investigation continues.
📸: Harvard University