More than 300,000 without power as storm, expected to continue overnight, pummels Ottawa, Quebec and Ontario

More than 300,000 Canadians faced power outages in parts of Ontario on Sunday as an ice storm pummeled the region over the weekend, according to electricity provider Hydro One.

Environment Canada issued winter storm warnings for freezing rain in Ottawa, parts of Quebec and Ontario, with the risk of snow mixed with or transitioning to ice pellets expected to continue until Monday morning in some regions.