The number of people who have died due to heat-related complications has increased from yesterday's 17 to 33, around Quebec, according to Public Health officials.
Kaiser said the social aspect - living alone and not having another place to go to cool down - typically plays a major role in heat-related deaths in the city.
The victims who succumbed to the heat were between the ages of 50 and 85 and did not have air conditioning in their residences and lived alone in apartments, officials said.
Twenty-eight of the deaths were in Montreal, said Marie-Claude Lacasse with the Ministry of Health.
On Friday, provincial officials said 54 people had died province-wide, but they could not immediately be reached for updated numbers on Saturday.
Environment Canada has lifted heat warnings for the affected regions, including Quebec, for the next several days.
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The 2010 heat wave was one of the hottest on record in over 60 years and was linked to some 280 deaths over a period in July.
No deaths have been reported in other provinces.
Heat warnings were in effect across southern Quebec, Ontario and the Atlantic region of the country, but temperatures were expected to drop overnight. "Obviously when we get there and the person may have passed, they're very rarely already with family".
Drouin said the victims were part of "the very vulnerable population, the elderly or people suffering from chronic or mental illnesses".
In the largest city of the province - Montreal doctors ambulance has received over the last few days, more than 1200 calls, which is 30% more than usual.