An 84-year-old woman has died after a fire blazed through her Laval home.

Laval firefighters say they received a 911 call Monday night about the fire on Mimosa Street in the Sainte-Dorothée district.

They found the woman unconscious and rushed her to hospital, where she later died.

Firefighters say they have reason to believe the blaze was accidentally started in the living room by an unattended cigarette left on a sofa and that it was made worse as a smoke detector was not working.

They estimate damages to the home to be around $40,000.