A firefighter suffered burns and another person is unaccounted for following a large, three-alarm fire at a Northwood house on Thursday night.

Firefighters arrived at the house on First New Hampshire Turnpike around 8:45 p.m. to find the two-story house fully engulfed in flames with flames coming out of every window and through the roof, Northwood Chief Mark Tetreault told WCVB.

Two people escaped the house but one was unaccounted for as of Thursday night, according to the chief. There were also initial reports of a person being trapped inside the house.

One firefighter suffered a non-life-threatening burn injury, Tetreault said. Ten departments were called to assist Northwood in battling the blaze.

There were also issues getting water to the fire, according to Tetreault.

The cause of the fire remains under investigation.

Route 4/202 was closed between Route 43 and Route 152 for several hours on Thursday night, according to the NH DOT.

The fire was one of two major fires in the Seacoast region Thursday night into Friday morning. Fire also damaged a home on Hill Street in Dover.

Here are some videos from the fire in Northwood:

Contact reporter Dan Alexander at Dan.Alexander@townsquaremedia.com or via Twitter @DanAlexanderNH

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