A fire at the suspect origin was mastered on Thursday in the district of Vanier, Quebec city.
According to firefighters, the fire would be declared a little before 3 a.m. at a residence in the rue Samson, close to the boulevard Pierre-Bertrand.
The arrival of the fire brigade, the fire had taken in the lounge and had spread to the floor.
The fire was under control around 3: 45 p.m., after the intervention of 35 firefighters.
A resident was transported to the hospital to have been bothered by the smoke.
The other residents, as well as the tenants of the basement, have been supported by the Red Cross.
An investigation has been opened by the police to determine the cause and circumstances of the fire.