A woman was rescued by firefighters after a house fire in South Harrow.
Four fire engines and 21 firefighters and officers were called to Roxeth Green Avenue after a blaze broke out at a terraced house.
All of the roof and half of the first floor of the property were alight when crews arrived.
The roof was completely damaged by fire and three quarters of the first floor was also damaged.
One woman was rescued by firefighters using breathing apparatus. She was treated at the scene by London Ambulance Service.
Control officers gave fire survival guidance over the phone to the woman and stayed on the phone until firefighters arrived.
The Brigade was called at 0855 and the fire was under control by 1007. Crews from Stanmore, Ruislip and Northolt fire stations attended.