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Explosion Inside Harvard Medical School Building Appears Intentional, Police Say

Investigators are seeking tips as a multi-agency team processes the scene on Harvard’s Longwood campus.

Overview

  • A HUPD officer responding to a 2:48 a.m. fire alarm found blast damage on the fourth floor of the Goldenson Building at 220 Longwood Avenue.
  • The officer saw two unidentified people running from the building before discovering the explosion.
  • The Boston Fire Department’s Arson Unit made an initial assessment that the incident was intentional.
  • Boston Police conducted a sweep for additional devices and reported none, with no injuries from the blast.
  • HUPD asked anyone with information to contact its detective bureau at (617) 495-1796, noting coordination with local, state, and federal partners, and some reports cited an FBI presence.