Homicide Squad Detectives are investigating the death of a man living at a short-stay accommodation in East Perth on Tuesday.
At around 4:50pm, the body of a 55-year-old man was located inside the Lime Street accommodation.
Investigators would like to speak to a man seen in the area at the time.
They believe he may be able to assist with their inquiries.
Police say they currently do not have a written description of the man.
Anyone with information about the incident or can identify the man is asked to contact Crime Stoppers on 1800 333 000 or make a report online at www.crimestopperswa.com.au.