The Office of the Maine State Fire Marshal is investigating a Monday morning fire at 5 Basford Road in Detroit that caused heavy damage to a two-story home, according to the Detroit fire chief.

The fire was reported around 11:30 a.m. at the home, which belongs to David and Lucille Brann. The Branns’ adult son was also home at the time the fire was reported and was outside watering a garden when he noticed smoke coming out the upstairs of the house, said Fire Chief Don Chute.

“He heard what sounded like a shotgun go off, a small explosion,” Chute said. “When he turned around and looked, there was smoke coming out both sides of the house upstairs. He went in and alerted his mother and father so they could get out and get their dogs out of the house.”

No injuries were reported, but there was significant damage to the house, Chute said. He said when firefighters arrived at the scene the entire upstairs of the house was on fire. There was also significant water damage to the downstairs, he said.

The couple is staying in a camper on the property, and they do have insurance, Chute said. He said the fire started either on the second floor of the house or in the attic and will be investigated by the fire marshal’s office. It is not considered to be of suspicious origin.

The Branns also lost a barn to an electrical fire on the same property in 2011, and firefighters managed to save their house at the time despite concerns about the fire spreading, Chute said.

Firefighters from Pittsfield, Newport, Burnham, Troy and Plymouth also responded to the scene Monday.

“I think they were fairly lucky,” Chute said. “It was a stubborn fire because they had a metal roof on the house so it made it a little tough for us to fight the spot fires. It was a coordinated effort though, and we were able to get it under control.”

Rachel Ohm — 612-2368

rohm@centralmaine.com

Twitter: @rachel_ohm