Far South Coast Police are investigating after they were alerted to the scene by a passer-by who noticed a car down an embankment on Imlay Rd, near Narrabarba.

It is unknown how long the vehicle had been there before being noticed.

The male sole occupant of the vehicle was pronounced deceased at the scene when emergency services arrived.

Police said at this stage the man's identity is unknown.

Police are continuing their investigations and urge anybody with information or dash-cam footage from the area to contact Crime Stoppers on 1800 333 000.