The blast came from an unknown device on the fourth floor of the Goldenson building on Harvard’s Longwood Campus, according to The Harvard Crimson. It went off shortly before 3 a.m., shaking nearby labs and waking residents across the area.
Police told the outlet that two people were seen running from the building at the time of the explosion. A university officer tried to stop them but failed, The Boston Globe said. The officer later entered the building to check on the alarm.
The Boston Fire Department confirmed the explosion was intentional, according to The Crimson. Crews searched the building and found no other devices…