Police are currently investigating the circumstances after a shooting and assaults in Tarneit this morning, Victoria Police say.
Police were called to a Conway Street address just after 4am.
A 31-year-old man was located with what is believed to be a gunshot wound and has been taken to hospital in a stable condition.
A 34-year-old man, a 23-year-old woman and a 32-year-old woman were also taken to hospital with assault related injuries; all are in a stable condition.
The exact circumstances surrounding the incident are being investigated.
Anyone with information is urged to contact Crime Stoppers.