A two-year-old boy has been airlifted to hospital in life-threatening condition after a house fire in in Acton, Ont., firefighters say.

The blaze broke out at approximately 2 p.m. at 108 Tanners Dr. near Queen Street.

Firefighters said they quickly had the fire under control, by the boy had to be transported to hospital by air ambulance after being pulled from the burning building.

Crews are still investigating the cause of the fire.