Windham firefighters responded to a fire at a garage at the Maine Correctional Center this morning.

Crews were working on a Maine Department of Transportation pickup around 10 a.m. — cutting metal — when apparently a spark ignited the truck.

The workers were taking a break when the fire broke out.

The flames destroyed the truck but did little damage to the garage, said Windham Fire Chief Charles Hammond. The fire was not close to the secure area that houses the prisoners, and there was no impact on prison operations, Hammond said.