Police are investigating a fire which damaged a house in Ravenswood early this morning.

Around 4am emergency services responded to a report of a house on fire on Rosetta Place.

The house was unoccupied at the time of the fire.

The dwelling sustained significant structural damage.

Investigations are continuing into the cause, but initial investigations indicated the fire appeared to have been deliberately lit.

Anyone with information in relation to the fire or suspicious activity in the area is asked to contact police on 131 444 or Crime Stoppers anonymously on 1800 333 000.