A 50-year-old Truganina man is being treated for life-threatening injuries after being shot in Jacana.
Police were called to the M80 Ring Road near Pascoe Vale about 12.10pm on Tuesday before learning the man had already presented to a hospital in Parkville with suspected gunshot wounds.
While investigations remain ongoing, police believe the attack to be targeted.
Anyone who witnessed the incident or has footage is urged to contact Crime Stoppers on 1800 333 000 or at www.crimestoppersvic.com.au