Montreal will ban pit bulls and other dangerous breeds of dogs beginning in September.
Mayor Denis Coderre says dogs that already live in the city will be grandfathered but will have to be sterilized and wear muzzles in public.
The ban was announced 10 days after a 55-year-old Montreal woman was found dead after being attacked by a pit bull.
The dog escaped from a nearby home before it attacked Christiane Vadnais.
Coderre said the city will also immediately create a special squad to enforce the city's existing dog regulations.
Premier Philippe Couillard said this week his government is considering a provincewide ban on pit bulls.