A murder inquiry has been launched after the discovery of a man’s body in the northern Perth suburb of Wanneroo. The body was found in a rotunda lookout over a lake in Yellagonga Regional Park off James Spiers Drive about 10:00am on Saturday morning.

Police said the man was believed to be between 25 and 40 years old.

Attempts are being made to contact his family.

Detective Sergeant Tom Mills said a passer-by found the body and called police.

“Someone’s called in to police this morning at about 9.40am. Obviously I can’t tell you who that person is, because they may be a potential witness,” he said.

Police said although they could not reveal the type of injuries the man had, the death was being treated as a homicide.

Detectives from major crime spent the day interviewing residents and visitors to the park.

Detective Sergeant Mills said there were known to be a number of itinerants and squatters who frequented the park.

“We do know that there are people who camp and squat in the area certainly, but at this point in time we are keeping a very open mind as to who this person may or may not be,” he said.

Police said the park was popular with walkers and joggers and that they were appealing for people who may have witnessed any unusual activity in the last couple of days to come forward.

Forensic officers are conducting a line search of the area looking for clues.

The park is expected to be closed for the next few days.