BOSTON (AP) — Two Massachusetts men have been taken into custody related to a weekend explosion at Harvard Medical School, as confirmed by the FBI's Boston office on Tuesday. The arrests were announced just before a scheduled news conference, though further details were not disclosed.

The explosion took place early Saturday morning on the fourth floor of the Goldenson Building, a facility primarily used for neurobiology labs and offices. Fortunately, no individuals were injured in the blast.

Medical school representatives reported that the explosion did not cause any structural damage, and all labs and equipment remained fully operational. Investigative efforts by the Boston Fire Department led to the conclusion that the incident was intentional, while police reported they found no additional explosive devices during their inspection of the premises.

University police noted that responding officers encountered two individuals fleeing from the building shortly after the fire alarm was activated that morning.