Timely Warning - Explosion in the Goldenson Building, Boston

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Arrest made.

Earlier this morning, acting on a tip received by law enforcement, investigators positively identified and arrested two suspects. The arrests were made by a multi-jurisdictional team that included the Harvard University Police Department, the Federal Bureau of Investigation, and local and state police departments.

There is no ongoing threat to public safety in connection with this incident or the individuals involved.

Disseminated at 1:25PM on Saturday, 11/4/25.

At approximately 2:48 AM this morning, a Harvard University Police Department officer was dispatched to the Goldenson building at 220 Longwood Avenue, Boston, for a fire alarm activation.  Upon arrival at the building, the officer observed two unidentified individuals fleeing the building.  The officer attempted to stop the individuals before proceeding to the floor where the alarm had been triggered. 

Upon entering the building, the officer determined that an explosion had occurred in an area on the 4th floor.  The Boston Fire Department Arson Unit responded and made an initial assessment that the explosion appeared to be intentional.  The Boston Police Department conducted a sweep of the building to check for any additional devices; none were found. 

No injuries were reported as a result of this incident.

The Harvard University Police Department is actively investigating this incident in coordination with local, state, and federal law enforcement partners.

If anyone has information regarding this incident, please contact the Harvard University Police Department’s Detective Bureau at 617-495-1796.

For questions about this message, please contact the Harvard University Police Department's Public Information Officer, Steven G. Catalano, at 617-495-9225 or by email at steven_catalano@hupd.harvard.edu.

Disseminated at 1:35 PM on Saturday, 11/1/25.