Commuter rail at North Station back on track after overheated engine delays rush hour service

BOSTON -- Smoke was seen pouring out of North Station Thursday afternoon after the engine of a train overheated at the Rockport Commuter Rail line.

A spokesperson for Keolis, the company that runs the commuter rail, said the engineer of an out-of-service train had a mechanical failure that led to the smoke, but there apparently was no fire.

The smoke caused delays during rush hour service, but the schedule is back on track.

The incident happened around 3 p.m.

Smoke was coming up and out of the train station under the Zakim Bridge. No one was hurt.