The man was treated for facial injuries at Rockingham Hospital.
Mandurah Detectives are investigating an assault, that's left a man with face and head injuries, that occurred in the car park of a fast food outlet.
It's believe between12:10am and 12:35am on Saturday November 17 8 a group of men approached the 38-year-old male victim and assaulted him in a carpark along Secret Harbour Boulevard.
The group of men fled the scene.
The victim received injuries to his face and head as a result of the incident and was treated at Rockingham Hospital.
Detectives would like to speak to anyone who may have witnessed the incident, in particular two women who were passengers in a white dual cab utility vehicle passing by at the time of the incident.
Anyone with information is asked to contact Crime Stoppers on 1800 333 000 or report online at www.crimestopperswa.com.au.