The investigation continues into a fire that destroyed a commercial garage Feb. 8.

The fire that destroyed Island Auto at 19 Island Road appears to have started when the driver of a pickup truck, who was burning his tires in front of the building, parked the vehicle next to the building. The truck caught fire and the fire then spread to the building, said South Thomaston Fire Chief Bryan Calderwood.

South Thomaston firefighters responded to the fire that was initially called in shortly before 7 p.m. as a car fire. When crews arrived they found the building was also on fire. Mutual aid was called to prevent the fire from spreading to a nearby boatyard and the Sea Store across the road, Calderwood said.

Fire crews from Rockland, Owls Head, St. George and Thomaston also responded as did ambulances from South Thomaston, St. George and Thomaston. Ten pieces of emergency equipment and 50 to 60 firefighters battled the flames. Crews remained at the scene until 11 p.m.

Calderwood said 13,000 gallons of water were shuttled to the fire scene.

Crews pushed one vehicle in the garage outside and saved it from destruction. Another vehicle was inside with the keys in it and was driven out and was undamaged.

The Knox County Sheriff’s Office and Maine State Police also were there, Calderwood said, and were looking into the way the fire started.