Explosion at Harvard Medical School Declared “Intentional,” Authorities Investigating
Early-morning blast at Boston campus
In the early hours of Saturday, November 1, 2025, an explosion rocked the fourth floor of the Goldenson Building—a structure on the Boston, Massachusetts campus of Harvard Medical School. The alarm was triggered at approximately 2:48 a.m. local time, prompting a response by campus security and fire officials. (People.com)
Apparent intentional act, no injuries reported
Investigators from the campus police department, the Boston Fire Department Arson Unit and the Federal Bureau of Investigation (FBI) have determined that the explosion “appeared to be intentional.” No one was reported injured in the incident. (AP News)
A university police officer responding to the fire alarm observed two unidentified individuals fleeing the building before the explosion site was discovered. A sweep of the building found no other explosive devices. (CBS News)
Suspects at large, images released
Surveillance imagery released by authorities shows two people dressed in dark hooded sweatshirts and face coverings running from the Goldenson Building shortly after the alarm. Officials are requesting the public’s help in identifying them. (The Times of India)
What we know—and what remains unanswered
What is known:
- Location: Goldenson Building, Harvard Medical School campus, Boston. (CBS News)
- Time: Approximately 2:48 a.m. local time on Saturday. (newsweek.com)
- Nature: Explosion deemed intentional by fire department arson unit. (ABC News)
- Damage: No injuries reported. Building was cleared, no further devices found. (AP News)
What is not yet clear:
- The identity or motive of the suspects.
- Whether sensitive research materials or equipment were damaged.
- The exact type of device used—some reporting suggests it was not a conventional bomb. (People.com)
- Whether there is an ongoing threat to the campus beyond the two fugitives.
Institutional and public safety implications
This incident raises serious concerns about campus security and the vulnerability of research institutions—even those as prestigious as Harvard Medical School. The fact that the explosion occurred in the early morning hours when fewer people might be present underscores the potential for trouble in off-peak periods. The involvement of the FBI indicates the matter is being treated with high priority.
For the Harvard community and city of Boston, the key questions now revolve around motive and whether this was an isolated act or part of a broader pattern. Authorities have urged anyone who was near the Goldenson Building around the time of the incident, or who may recognize the individuals in the released photographs, to come forward. (The Indian Express)
Next steps in the investigation
- The Harvard University Police Department is coordinating with Boston and federal authorities.
- Continued review of surveillance footage and physical evidence from the explosion site.
- Public tips and witness accounts are being solicited to identify the suspects.
- Campus security protocols may be reviewed and updated to prevent a recurrence.
Editor’s Note
As this investigation is ongoing, further developments may emerge regarding damage assessments, potential arrests, and detailed motive analysis. We will continue to monitor this story and provide updates as credible information becomes available.
