Four fire engines and around 20 firefighters and officers were called to a fire at a shop with derelict flats above on Station Road in Harrow this morning.
Part of the ground floor shop was damaged by the blaze. No injuries are reported.
The Brigade was called at 0629 and the incident was over by 0809. Fire crews from Harrow, Northolt and Stanmore fire stations were at the scene.
The cause of the fire is under investigation.