Passengers had to be evacuated from a commuter rail train in Belmont because of a small engine fire Thursday evening, MBTA police said.
The engine caught fire around 5:30 p.m. in Belmont Center station, Richard Sullivan, superintendent of the MBTA police, said in an e-mail. The fire was quickly extinguished, and no injuries were reported.
Services are being diverted to buses, Sullivan said.
Adam Sennott can be reached at adam.sennott@globe.com.