A Mundijong man arrived at hospital yesterday with a gunshot would and facial injuries.
A 36-year-old man presented to Armadale Hospital on Thursday with serious injuries.
Police are seeking information after he suffered a gunshot wound and facial injuries.
It's believed he drove himself to the hospital.
Initial investigations led police to a house on Livesey Street, which is where the incident is believed to have taken place.
The man has links to an outlaw motorcycle gang.
Detectives from the Gang Crime Squad have taken over the investigation.
Anyone with further information should contact Crime Stoppers on 1800 333 000 or make a report online.
Police issue 31,000 driving infringements in first month of new AI cameras
Works underway on Rockingham and Safety Bay High School redevelopments
New measles exposure sites revealed in Bunbury
Dawesville man charged after allegedly leaving his elderly Great Dane to suffer painful conditions
Good Samaritan sought by police after helping teen during robbery in Baldivis
Under-16s social media ban now in force
Desperate search continues for missing Bunbury FIFO worker
Passengers now able to use credit, debit cards to tag on and off WA's public transport
New floating jetty speeds up emergency response times for Marine Rescue Mandurah