Tractor-Trailer Chemical Fire Closes Down I-495 North

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ANDOVER (CBS) -- All northbound lanes of I-495 in Andover were closed Monday afternoon into the evening after chemicals inside of a tractor-trailer truck interacted and exploded causing a fire.

One lane reopened around 8 p.m., over five hours after the highway closed.

Photos from today's Haz-Mat response earlier in #Andover. pic.twitter.com/riXLl1gkT9
— Mass State Police (@MassStatePolice) October 30, 2017

Officials said that two barrels of hazardous materials caught fire.

No air quality issues were detected by State Police.

HazMat crew on scene, truck chemical fire, Rt 495 Andover. Strong joint effort by numerous agencies to render scene safe. pic.twitter.com/vN4AfKsgMp
— Mass State Police (@MassStatePolice) October 30, 2017

Firefighters needed the barrels to cool before they could be removed.