Two other people found inside the home in the city’s east end were also taken to hospital where they were in stable condition, Hamilton police said in a statement early Friday morning.
Investigators were working to “notify family and next of kin about this tragic event,” police said.
Crews were called to a townhouse in the city’s south just after 11 p.m., and upon arrival firefighters could see heavy smoke and fire coming from the front and back of the unit, the Hamilton Fire Department said in a statement Friday.
The first crew to arrive was told there were people trapped on the second floor, the fire department said.
Residents were evacuated from the two adjacent units and could return to their homes Friday, police and fire said.
Ontario’s Office of the Fire Marshal is investigating and the cause of the fire, as well as the extent of the damage, has not yet been determined.