MANCHESTER, N.H. —

The state fire marshal’s office is investigating a fire at a mobile home on Bunker Lane in Madbury.

Officials say multiple calls about the fire came in just before midnight Thursday. When first responders arrived, they found a single-family home on fire and learned the sole occupant was unaccounted for.

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Authorities say firefighters worked for several hours to extinguish the fire. Crews were initially unable to access all areas of the home due to a roof collapse.

Once the crews extinguished the fire, they located a deceased man inside the home.

The victim’s name has not yet been released.

Officials say the fire remains under investigation and is not currently considered suspicious.