Transit police in Boston were investigating a shooting on a subway platform at Harvard University on Sunday that prompted the school to issue a shelter-in-place order for students and staff. Authorities temporarily rerouted passengers on part of the city’s subway system to shuttle buses as officers from various departments searched for a suspect.

Students and staff at Harvard University have been told to shelter in place following reports of shots fired at a subway station near the school

Authorities are searching for a suspect in connection with a shooting at Harvard Square on Sunday afternoon. A shelter-in-place warning is in effect.