GORHAM — An unoccupied house was targeted in the latest in a string of suspicious fires in town, but the house was spared by the direction of the wind, according to the state Fire Marshal’s Office.

The fire at 363 Sebago Lake Road, near an entrance to the now-closed White Rock Elementary School, was reported around 1:20 a.m. Wednesday. It was the sixth suspicious fire in Gorham since March 27.

Five of the fires, including Wednesday’s, are considered arson. Investigators are awaiting lab results to confirm whether the other one was arson.

The farmhouse-style home where the fire was set Wednesday had housed 3rd Generation Automotive. A sign on a nearby building that also was used by the company said it had gone out of business.

Grass behind the house was burned, and parts of the property were cordoned off with yellow police tape.

Authorities won’t say how they believe the fire started, why they think the house was the target or where the fire was set.

“It’s obvious it was the luck of the wind that prevented this building from going up in flames,” said Steven McCausland, spokesman for the state Department of Public Safety.

George Dachowski was asleep in his home across the street when he was awakened by the lights of fire and police vehicles. He said several firefighters with flashlights were looking around in the upper level of the house and a police officer knocked on his door around 3 a.m. to ask if he had seen anything suspicious.

Dachowski, a retired salesman, said he and others feel the need to be vigilant. He said he had been video recording vehicles that had been around the property since the fire.

“Everybody will be happy when the damn things are over, I’ll tell you that,” he said.

The first of the suspicious fires was set at a home on Spiller Road on March 27. The next, on March 31, leveled the SnoGoers clubhouse on Mighty Street. The next morning, a house on Great Falls Road that was undergoing renovations was destroyed.

On April 8, a fire on Buck Street — the one fire that has yet to be confirmed as arson — destroyed a garage. Three days later, a fire caused minor damage to a wall of an unoccupied house on Dingley Spring Road.

Investigators believe that the same person or people are responsible for all of the fires, because of the type of fires and the way they were set, said Sgt. Joel Davis of the state Fire Marshal’s Office.

Authorities are still fielding tips from the public, he said. The investigation involves the Fire Marshal’s Office, the Gorham fire and police departments and the federal Bureau of Alcohol, Tobacco, Firearms and Explosives.

Authorities ask that anyone with information call police at 839-5581 or email dthompson@gorham.me.us.

“We want to find the person or persons responsible,” Davis said. “We’re hoping some alert citizen is going to observe something that breaks the case wide open.”