Firefighters responded to a fire early Wednesday morning at Casella Waste Systems in Westbrook. Credit: WGME

Firefighters responded to a fire early Wednesday morning at Casella Waste Systems in Westbrook.

Westbrook firefighters say the fire started around 1:30 a.m. in a tractor-trailer outside the facility.

The fire then spread to two other tractor-trailers.

The fire did not spread to any buildings.

Firefighters say the tractor-trailers were filled with compacted trash and kept reigniting.

No one was hurt, and there is no word yet on what caused the fire.

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