Emergency services were called to a house on Kaniva Street about 8.20am after reports of two men suffering serious injuries, possibly inflicted by a gun. Police have said they do not believe anyone else was involved.
The pair, a 22-year-old from Dallas and a 19-year-old from Craigieburn, are being treated at the Royal Melbourne Hospital for upper body injuries and remain under police guard.
The Sunday morning incident comes after a man with organised crime links was executed inside his home in Wollert, a short drive from Dallas, on Thursday afternoon. Homicide squad Detective Acting Inspector Paul Scarlett said the 42-year-old victim was located inside the house with multiple gunshot wounds. "We do believe that this person has got links to organised crime," Scarlett said.
Innocent bystanders ran for their lives as a possible gunman was captured on CCTV fleeing the scene on Gypsum Drive about 5.30pm on Thursday. Scarlett said the victim's family was away at the time of the shooting but returned home shortly afterwards to find their loved one dead.
Police have urged anyone with information about either incident to contact Crime Stoppers.