VIDEO: Fireworks barge explodes, catches fire

PLYMOUTH, MA -- A barge being used for a July Fourth fireworks celebration in Massachusetts exploded and caught fire.

Police say a malfunction caused the explosion and fire Monday night during a fireworks show on the waterfront in Plymouth, 40 miles southeast of Boston.

Witnesses say the fireworks show had been going on for about 10 or 15 minutes when there was a large boom on the barge followed by bursts of fire. The barge fire lasted for about 10 minutes and may have spread to a second barge.

Firefighters were trying to determine what caused the malfunction.

No injuries were reported.