Authorities in Washington State are investigating a fire that badly damaged several semi trucks on Sunday.

The fire started shortly after midnight early Sunday morning in a fenced-in parking lot at 11400 Steele Street South in Parkland, Washington.

By the time that Central Pierce Fire and Rescue arrived on scene, several semi trucks in the lot were on fire.

No injuries were reported.

It took crews about 20 minutes to extinguish the fire.

Nine semi trucks were destroyed.

The Pierce County Sheriff’s Office told local outlet Kiro7 that the fire is deemed suspicious and arson is being investigated as a cause.

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