GREENFIELD — No one was injured during a first-alarm fire at a commercial garage at 130 Laurel St. late Saturday night, according to Greenfield Fire Capt. Dan Smith.

The incident was reported as a roof fire at around 10:30 p.m. The blaze was described on the Greenfield Fire Department’s Facebook page as “heavily involved” upon arrival and mutual aid crews were called in from surrounding towns.

“The building and contents burning, as well as high-voltage overhead wires,” provided a challenge to extinguish, the department wrote.

According to Smith, no one was inside the building at the time of the fire and the cause is still under investigation. While the extent of the damage is still being assessed, Smith said he believes the building is a total loss.

Smith described the fire as being “hard to access,” with hotspots popping up and keeping firefighters busy for hours. Crews remained on scene until around 3:30 a.m.

On Sunday morning, Smith said firefighters returned. Of the 10 vehicles being stored in the garage, Smith said they were able to wheel out three and tow out another. The remaining vehicles were left inside due to partial building collapse.

Firefighters from Greenfield, Turners Falls and Bernardston responded, along with Erving Fire Chief Philip Wonkka. Northfield and Deerfield provided station coverage.

“Our guys did a great job,” Smith said, “and I appreciate the towns that provided mutual aid.”