Two multiple-car crashes caused major traffic on the Massachusetts Turnpike eastbound inside the Prudential Tunnel on Tuesday afternoon, with one vehicle fully engulfed in flames.
Smoke made its way into Copley Place through air vents, according to the Boston Fire Department. One crash involved six vehicles, the other two vehicles -- firefighters were called about 3:45 p.m.
Lanes were closed near the Copley Ramp and the highway was backed up.
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State police added that the left and right lanes were closed in the area of both crashes, and that one vehicle was "fully engulfed" in flames. Boston firefighters were on scene.
The ramp to Copley Square was also closed, state police said. All lanes opened up after nearly two hours.
There is no word yet on whether anyone was injured.
No further information was immediately available.