BOSTON (WHDH) - Passengers on a Red Line train were evacuated Monday night after sparks starting flashing underneath one of the cars and smoke began filling the MBTA’s Broadway Station.

Passengers should expect delays of about 30 minutes due to a “mechanical problem,” The Massachusetts Bay Transportation Authority posted on their Twitter page.

Shuttle buses temporarily replaced regular train service between JFK/UMass and Park Street stations, causing confusion among dozens of passengers.

Mike Rowell captured video of the frantic moment passengers onboard the disabled train rushed out and onto the platform.

He said he jumped off but then noticed a woman still inside the train, asleep.

“Everyone cleared and then there was just that one lady around the corner, right by the door where I was at and she was out,” Rowell recalled. “I was yelling at her, screaming. Then another lady comes up and I’m whacking the side panel to the seat and I don’t know, just, helping people came into play you know?”

Rowell was eventually able to help that woman to safety.

The train has been taken out of service and Boston firefighters have cleared the scene.

It is unclear if anyone was injured.

Officials are on scene working to fix the problem.

This is a developing news story: Stay with 7NEWS on-air and online for the latest details.

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