One man is in hospital in serious condition after being shot in the upper body late Monday night.
Police spokesperson Raphaël Bergeron says it happened at 11:45 p.m. on Notre-Dame Street near 4th Avenue in Pointe-aux-Trembles.
Officers found the 24-year-old victim lying unconscious on the ground.
Police have no information about the suspect, only the possibility that they fled by foot, Bergeron says.