A dramatic explosion shook the quiet hours at Harvard Medical School early Saturday, causing alarm but miraculously leading to no injuries. The incident sparked a swift response from campus security after a police officer noticed two individuals darting away from the Goldenson Building where the fire alarm was triggered. According to the Boston Fire Department, the explosion was confirmed as intentional, and following a thorough search of the building, no additional devices were uncovered. The police have released grainy images of the fleeing suspects, wearing hoodies and face coverings, in an effort to track them down and ensure campus safety.}