Armadale detectives are seeking information from the public after a 41-year-old man was assaulted in Maddington yesterday.
At about 5.40pm the victim was walking along the footpath on Helm Street when he as approached by a man he did not know who punched and knocked him to the ground.
The alleged offender then left the scene with another man who was also unknown to the victim.
The victim was later treated for facial injuries at Armadale Hospital.
Police would like to speak to anyone who was in the area or has dash cam footage from the area of Helm or Weston Streets around the time of the incident.
Anyone with any information can contact Crime Stoppers on 1800 333 000 or make a report online at crimestopperswa.com.au