A man has been stabbed inside Rockingham Shopping Centre.
Police and St John Ambulance were called to the scene just outside the Coles entrance around 4pm on Tuesday.
It's understood the man was stabbed when he approached a group of teenagers accused of stealing.
The victim, aged in his 30s, was taken to Royal Perth Hospital in a serious condition.
The teenagers ran from the scene.
Anyone who witnessed the incident, or were in their vehicle or walking around the Read Street area of the shopping centre, and saw three male teenagers running is asked to contact Crime Stoppers by calling 1800 333 000 or by making a report online at crimestopperswa.com.au.
Peel Thunder's Bo Allan becomes an Eagle
Christmas on the Murray 2024
Man charged over Henderson hit-and-run crash
Manslaughter charges dropped against man accused of Mandurah boat tragedy
Rockingham boy critically injured in Bali quad bike crash
Christmas cheers returns to Mandurah
City of Mandurah launches new community safety strategy
Winners announced for the 2024 Alcoa Peel Business Excellence Awards
Mandurah: Three girls charged with aggravated armed robbery