UPDATE: WCVB reports the train driver was taken out of service for "a long talk" about not panicking riders.
There was a chaotic scene at Mass. Ave. around 5:30 p.m. caused by balky brakes on an Orange Line train.
Ashley Keenan reports:
Was told to get off the train at mass ave. lots of yelling and chaos.
David Siegel addressed a tweet to the T:
Your conductor's panicked screams of "get off the train" didn't help the stampede off the train!
By the time Boston firefighters arrived, the MBTA had already emptied the train and moved it out of the station. T officials told firefighters the smoke came from some malfunctioning brakes, but that there was no fire.