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.
City of Kwinana proposes 4.5 per cent rate rise
Recreational boat fishers offered $50 rebate for fishing gear at participating tackle shops
Waikiki teen among the best CrossFit athletes in the world
Mandurah's Kerrie Overell crowned WA Volunteer of the Year
Wellard home destroyed by fire
Woman fined $7k after catching 134 undersize crabs in Coodanup
Mandurah mayor Amber Kearns 'disappointed' in councillor Peter Rogers' decision to resign
Speed limit dropped to 70km/h on stretch of Mandurah Road in Secret Harbour