CAMBRIDGE, MASS. (WHDH) - Passengers on a flaming MBTA bus in Cambridge were evacuated after downed trolley lines sparked a blaze on Tuesday.

Emergency crews responding to a reported bus fire in the area of 161 Huron St. around 3 p.m. determined the fire was caused by downed trolley lines, according to police. An MBTA spokeswoman said the bus operator immediately opened all doors when the bus caught fire.

Cambridge firefighters extinguished the flames that were shooting from the top of the Route 72 bus.

Video from Sky7HD showed a front part of the bus that was blackened by the blaze.

“There were sparks, sparks, sparks flying out, it was very interesting to see,” said witness James Hutchinson. “It looked like a war zone.”

There were no injuries, though the bus driver was evaluated.

Huron Avenue was closed between Reservoir and Concord avenues while crews worked on the scene. In a statement, the MBTA said the 72 bus was seeing 20-minute delays while crews restored full service to the route.

An investigation is ongoing.

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

(Copyright (c) 2024 Sunbeam Television. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)

Join our Newsletter for the latest news right to your inbox