India, April 21 -- Police confirmed that shots were fired at the Harvard Square MBTA station on Sunday, and a shelter-in-place was issued. Harvard University sent an emergency alert to students and staff members, saying that authorities are searching for the suspect.

"Shelter in place. Please enter the nearest building and stay there until all clear is given," an initial alert said. Around 3:20 PM local time, Harvard sent out a second alert, saying, "The search has concluded. The shelter in place has lifted."

The gunfire on Easter Sunday was reported at the Red Line T station. Calls first came in at 2:14 PM local time. No injuries have been reported yet.

The suspect has been described as a man wearing a gray hoodie and a ski mask. The ...