Dam that must have been really bad, but everyone got out safe. After a Boston train motor started to smoke and fill up the train cars, people began to panic as none of the doors would open so they started to break through the windows to escape before police responded quickly to open the doors.

Frankie Zing

The Massachusetts Bay Transportation Authority said an inbound Orange Line train was starting to depart Back Bay station when smoke started to seep through into the cars, putting people into panic mode. Transit police officers and MBTA operators helped passengers evacuate from the station below: