The search for a suspect in a reported shooting at the Harvard Square MBTA station has ended and a shelter in place at Harvard has been lifted, according to a university alert.

Harvard said in an alert shortly before 3 p.m. that MBTA Transit Police were reporting shots fired at the Harvard Square T station. They said Cambridge, T and Harvard police were all searching Harvard Square for the suspect.

“Shelter in place,” the alert said. “Please enter the nearest building and stay there until all clear is given.”

Around 3:20 p.m., Harvard sent out a second alert, saying, “The search has concluded. The shelter in place has lifted.”

No further details were released.

The MBTA posted on Twitter that delays of about 25 minutes were being reported on the Red Line due to police activity at Harvard. Shuttles have since replaced service.

Red Line Update: Shuttle buses are replacing service between Central and Alewife due to police activity at Harvard. Passengers should expect delays as shuttles are being dispatched. https://t.co/1hqoxASuuV

— MBTA (@MBTA) April 20, 2025