Chilmark firefighters responded to the scene of a pickup truck engulfed in flames on South Road Wednesday morning.

Fire chief Jeremy Bradshaw said the call came in just after 10 a.m. The truck was traveling in the west bound lane on South Road when the driver noticed a fire starting in the bed of the truck, the chief said. The driver pulled over to the side of the road and got out of the car.

“[The truck] engulfed pretty quickly,” Chief Bradshaw said.

No injuries were reported, and the cause of the fire is unknown, Chief Bradshaw said. He did say that there were lithium batteries in the bed of the truck.

The truck’s fuel caught fire and there were multiple small explosions inside the vehicle, the fire chief said. The make and model of the vehicle is unknown; Chief Bradshaw said it was “completely destroyed.”

He said flames spread to about 300 square feet of brush on the side of the road, which was quickly contained and put out once crews arrived at the scene.

Edgartown and West Tisbury fire departments assisted at the scene. Crews arrived about 10 minutes after the call came in and left about 11:30 a.m., the chief said.