Police are actively investigating a shooting that occurred at the Harvard Square MBTA station, resulting in a shelter-in-place advisory issued for Harvard University students. Eyewitness reports indicate that shots were fired on the subway platform, although no injuries have been reported at this time. Authorities have released images of a suspect in connection with the incident and are seeking a person of interest. The shooting prompted immediate concerns among students, many of whom expressed fear and anxiety as they received notifications to stay indoors. The police continue to search for the shooter while assuring the public that the situation is under control.