A fire that badly damaged a house at Mollymook Beach early Sunday morning is being treated as suspicious.
Emergency services were called to Bannister Head Road at about 2.45am on December 18 following reports of a house fire.
Fire and Rescue NSW managed to extinguish the blaze but not before the house was extensively damaged.
Police established a crime scene and commenced an investigation into the cause of the blaze.
The house was unoccupied at the time of the fire and there are no reports of injury.
Anyone with information about the fire is urged to call Ulladulla Police on 4454 8599 or Crime Stoppers on 1800 333 000.
Image: NSW Police