Five people in Canada are dead, likely from carbon monoxide poisoning, police said Tuesday, as tens of thousands remain without power in below-freezing weather after a weekend ice storm. Police commander Dacid Vijakainen warned residents to avoid using generators and barbeques to heat their homes after a 52-year-old man and his 72-year-old mother died northeast of Toronto. Police in Quebec said carbon monoxide poisoning is believed to be the cause of three deaths in a chalet on the province's North Shore. In Toronto on Monday night, 11 people were taken to hospitals with signs of carbon monoxide poisoning. Mayor Rob Ford said the city received about six times as many calls about carbon monoxide Monday — about 110 over 24 hours — as it gets in a usual day.