Firefighters battle car fire inside Prudential Tunnel where 2 separate multi-vehicle crashes held up traffic

BOSTON (WHDH) - Mass. state police troopers responded to two multi-vehicle crashes in the Prudential Tunnel on Tuesday.

Both the left and right lanes were shut down in the respective locations of the crash, backing traffic up from the Market Street Overpass all the way to Weston ahead of the evening commute, according to a post on the department’s Twitter page.

One of the vehicles involved was fully engulfed in flames and the ramp to Copley Square has been closed to accommodate fire crews.

Firefighters said the smoke generating from the fire is so intense that it traveled up the vents in the tunnel and up into the first floor of Copley Place.

Scary drive in the tunnel.

I was behind the 1st crash (4/5 cars involved). We were forced to slam on our brakes, but a driver 2 cars behind me wasn't able to in time – causing the second crash. After hearing that crash, flames broke out in the tunnel.

Thinking of all involved. https://t.co/rRPeTSJ91K
— Caroline Goggin (@CarolineGoggin) August 31, 2021

There has been no word on any injuries.

Drivers should seek alternate routes.

#MAtraffic Troopers working two separate multi-vehicle crashes Route 90 EB inside the Prudential Tunnel in #Boston. The left and right lanes are closed at the respective locations. One vehicle fully engulfed, @BostonFire on scene. Ramp to Copley Square closed for fire crews.
— Mass State Police (@MassStatePolice) August 31, 2021

No additional information has been released.

This is a developing story; stay with 7NEWS on-air and online for the latest updates.

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