Police first reported investigating a shooting that claimed the life of a man in Malton.
A man in his 20s was shot at about 2 a.m. on Sunday.
He later died of his injuries.
Police remain at the scene at Brandon Gate Drive.
There is no information yet on any suspects.
Hours later, police said they were investigating a suspicious death in Mississauga.
Officers were called to 1547 Mississauga Valley Blvd., near Hurontario Street and Central Parkway West, to investigate the discovery of a body.
Police say the circumstances are suspicious. They are still investigating.