The Aroostook County Sheriff’s Office says a fuel truck accident Thursday afternoon in Caswell caused an oil spill but the driver escaped unharmed.

Police and firefighters responded to the crash on the Willard Road around 2:30 p.m.

Deputy Sheriff Michael DeLena determined that 38-year-old Chad Morrow of Limestone was westbound in a 2007 Freightliner fuel truck when he lost control of the truck and it flipped on its side.

The truck struck a guard rail, which punctured the fuel tank causing #2 fuel oil to spill onto the roadway, police say.

The Maine Department of Environmental Protection was called to the scene to contain the fuel spill and offload the remaining fuel from the truck.

Morrow was not injured in the crash, which occurred just north of the Aroostook National Wildlife Refuge.

The Sheriff’s Office says the crash remains under investigation, but it appears that speed was a contributing factor.

Maine State Police and Limestone Volunteer Fire Department assisted at the scene. The oil delivery truck, owned by Hometown Fuels of Limestone, was towed away due to disabling damage.