Smoky fire in Boston subway tunnel cleared up, but 1 train line delayed; 20 people treated

Boston subway fire cleared up, but 1 line delayed

BOSTON — Officials say a smoky fire in a Boston subway tunnel that led to about 20 commuters being treated for smoke inhalation is causing delays on one line.

The Massachusetts Bay Transit Authority says Red Line passengers are experiencing delays of up to 15 minutes Friday getting through the downtown area. A signal problem caused by the Thursday night electrical fire is blamed for the delays.

The fire started after 10 p.m. just north of the Downtown Crossing station in a tunnel where several lines intersect. While the fire was contained to that tunnel, smoke spread into several nearby stations and platforms.

MBTA spokesman Joe Pesaturo says crews worked through the night to clear the lines. The cause remains under investigation.