Nine people, including a young girl, have been shot near downtown Toronto, according to Canadian police, who confirmed the gunman was dead.
The condition of the victims was not known yet, Toronto police said on their Twitter feed.
Police, paramedics and firefighters converged on the site of the shooting in the east end of Canada's biggest city, which has many popular restaurants, cafes and shops.
Reports of gunfire in the city's Greektown neighborhood began at 10pm on Sunday (local time), CityNews.com said.
Witnesses said they heard 25 gunshots, the news website reported.
Toronto is grappling with a sharp rise in gun violence this year.
Deaths from gun violence in the city jumped 53% to 26 so far in 2018 from the same period last year, police data last week showed, with the number of shootings rising 13%.
Toronto deployed about 200 police officers from July 20 in response to the recent spate in shootings, which city officials have blamed on gang violence.
