BOSTON (AP) — Two individuals from Massachusetts are in police custody following an explosion that took place at Harvard Medical School. The FBI's Boston office shared news of their arrest on social media ahead of a scheduled 1 p.m. press briefing, though details were initially scarce. The incident occurred early Saturday morning on the fourth floor of the Goldenson Building, which accommodates labs and offices for the school’s neurobiology department. Fortunately, no injuries were reported. University officials indicated that the explosion did not cause any structural damage, and all labs and equipment were left intact. After a thorough investigation, the Boston Fire Department adjudged the incident to be intentional. Authorities confirmed that no additional devices were discovered within the building during their search. Notably, a law enforcement officer who responded to a fire alarm reported seeing two individuals fleeing the vicinity.";