A North Nowra man in his 20s has died following a boating accident at Currarong this morning.
The man was spear fishing in an area known as Little Beecroft, south of Nowra, when he was allegedly hit by a boat propeller.
He sustained extensive injuries.
The man was taken by boat to Currarong boat ramp.
Paramedics arrived on scene and CPR was performed.
The Ambulance Rescue helicopter was also dispatched to the site with the doctor on board declaring the man deceased.
Four boats, one which the victim was believed to have been in and three others that carried possible witnesses, were detained by police, who established a crime scene at Currarong boat ramp.
Detectives arrived on scene to speak with a number of people in the area.
According to one witness the man was using a buoy and dive flag.
A police investigation is continuing.