A TEENAGER was assaulted and another was threatened at knife point at Naval Base on Sunday.
Police said a group of teenage males, aged between 15 and 18 years, set up camp at Horse Beach at 6.30pm to spend the night fishing.
Sometime after midnight, a group of six to 10 men walked into the camp site and threatened the teenagers, demanding their fishing rods.
One of the men struck an 18-year-old victim to the head causing a laceration that required two staples to close.
A second offender threatened another 18-year-old victim with a knife.
The men forced the victims to lie on the ground while they searched through their bags.
The men walked off with the fishing rods and other personal property belonging to the victims.
The man armed with the knife was described as 20-30 years of age, fair skinned, 190cm-200cm tall, with a large build and protruding stomach, short brown hair and facial stubble. He was wearing light-coloured long pants and singlet.
Description of the other men were: about 19 years old, fair skinned, 175-180cm tall, with a slim build and blonde hair, wearing a singlet and shorts; about 25 years old, tanned skin, 185-195cm tall, with a dark beard or moustache, wearing a blue hoodie and dark pants; about 19 years of age, fair skinned, 165-170cm tall with long brown hair; and the remaining men were 20-25 years of age, fair skinned, wearing dark coloured shirts and dark coloured shorts.
Detectives would like to speak to the owners of three cars parked in the carpark of the beach (Riseley Road) on the day of the incident.
There was a white Holden Rodeo (about 1989 model) four door, an orange Holden Commodore SS (about 2010 model) sedan and a white Holden Landcruiser utility (about a 2000 model), stickers on the rear, black rims and lift kit.
Detectives are appealing for anyone with information, or dashcam vision of people in the area from 4pm Saturday to 1am Sunday to Call Crime Stoppers on 1800 333 000 or to make a report online.