Demolition crews start to knock down rest of Chelsea warehouse ravaged by 9-alarm fire – Boston News, Weather, Sports [Video]

CHELSEA, MASS. (WHDH) – Some schools canceled classes in Chelsea on Monday after a huge, nine-alarm fire destroyed an abandoned four-story warehouse overnight.

Crews responding to the former commercial site on Forbes Street around midnight Monday found a building fully engulfed in flames. Crews used ladder trucks to conduct an exterior attack on the building, which eventually had the roof collapse into the basement.

About 200 firefighters from Chelsea, Belmont, Waltham, Brookline, and other communities worked together to extinguish the blaze.

Fire officials say the bulk of the fire was been knocked down and that crews would remain on site throughout the day to monitor hot spots.

“It’s a three-to-four-story old mill-style building. When they arrived, they had fire on all floors,” said Chelsea Fire Chief John Quatieri. “Thank God it wasn’t windy. If the wind was blowing in this direction, we would’ve had a much bigger problem.”

Commuter rail …