Fifteen fire engines and around 100 firefighters were called to a restaurant fire in a building containing shops and flats on Westbourne Grove in Notting Hill.
The fire affected a restaurant on the ground floor and basement. Around 16 people left the property before the Brigade arrived. One person was treated at the scene for smoke inhalation.
Station Manager Keith Carmichael, who was at the scene, said:
"This was a difficult fire to fight due to there being a partial ceiling collapse which is reducing access to the seat of the fire. Firefighters worked hard to bring the blaze under control however we are likely to remain on scene for the rest of the day. While operations continue we'd ask for people to avoid the area if possible."
The Brigade was called at 0654 and the fire was under control at 1536. Fire crews are expected to remain at the scene throughout Monday (August 12). Fire crews from Paddington, Kensington, North Kensington, Hammersmith, Soho, Chelsea, Lambeth, Battersea, Euston, West Hampstead and Willesden fire stations attended the scene.
The cause of the fire is not known at this stage.