Armed Crime Squad detectives are currently on scene investigating the circumstances after a man was shot in Coolaroo last night, Victoria Police say.
Police have been told a number of shots were fired outside a gym on Reservoir Drive about 8pm.
A 21-year-old Campbellfield man received a number of gun-shot wounds and presented at a hospital a short time later.
He remains in hospital with non-life threatening injuries.
It is believed to be a targeted attack and no one else was injured.
The exact circumstances surrounding the incident are yet to be determined and detectives are keen to speak to any witnesses.
Anyone with information is urged to contact Crime Stoppers.