Brockton firefighters battled a three-alarm fire in a boarded-up building on Monday.
Brockton firefighters battled a three-alarm fire in a boarded-up building on Monday.
George Rizer for the Boston Globe

Fire officials are investigating a three-alarm blaze in Brockton that tore through a vacant, wood-framed structure, with flames so strong that firefighters were forced to fight them from the outside of the building.

Brockton Deputy Fire Chief Brian Nardelli said officials were called to the two-and-a-half story wood-framed home at 16 Somerset Place at 3:50 a.m. to find heavy smoke and fire coming from the top two floors. After conducting an initial search of the building, and finding no one inside, firefighters fought the blaze from the outside with water lines because the heat was so strong.

“The fire was already coming through the roof when they arrived on scene,” Nardelli said. “There was a heavy amount of fire in the actual structure.”

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He said the home was vacant and had no contents inside. “The fire was burning in the actual structure, and that’s probably why it went so long,” he said. No injuries were reported.

Nardelli said the cause of the fire remains under investigation. He could not say whether it was suspicious, or whether there was evidence of squatters inside.

“I don’t think they can rule anything out,” he said. The state fire marshal’s office is also looking into the cause of the blaze.

Investigators are asking if anyone saw the fire in its earliest stages or has other information that could help them determine the cause, to please contact Brockton fire or police or the statewide arson hotline at 1-800-682-9229.