Two men have been shot near Pie-IX and 54th avenue in the city's St-Michel district around 7:00 p.m.
Police say it was a case of attempted murder.
"A 25-year-old victim is in hospital but his life is no longer in danger," said Montreal police Constable Jean-Pierre Brabant. "The other victim, a 28-year-old man, he is still in hospital in critical condition."
A motive for the attack is not yet known. Police are investigating.