A man was taken to hospital suffering from burns after a fire that destroyed part of a house.
The fire brigade was called to the blaze in Churchill Avenue in Kenton, at 3.55pm on Saturday.
A man at the house escaped the fire, which damaged a large part of the roof of the house.
A total of 35 firefighters and six engines from Harrow, Stanmore, Wembley and Northolt attended the scene and crews had the fire under control by 6.05pm.
The London Fire Brigade say the cause of the fire is under investigation.