Police are attending the scene of a suspected murder in Ellenbrook this afternoon.
Authorities were called to a Pinea Turn address about 3pm after reports of an injured man.
The man was taken to Swan Districts Hospital with possible stab wounds but has since died.
Several people were at the house at the time of the incident and are now being questioned by police.
Forensics and major crime are expected to be at the scene well into the night.
Anybody with information is urged to call Crime Stoppers on 1800 333 000.