Firefighters tackled a fire at a restaurant in Bayswater on Thursday morning (May 21).
Around 35 crew members from six engines attended the scene in Gloucester Terrace from 8.40am to 9.40am.
The fire affected the ground-floor restaurant’s ducting - its air extraction system - between the ground and top floors of the building, which housed flats.
Station Manager Rob Davies, who was at the scene, said: “Thanks to quick and aggressive firefighting in the early stages of this incident crews managed to confine this fire to the restaurant’s ducting.
“Two people left the property before the Brigade arrived and our firefighters evacuated six others from neighbouring properties.”
The cause of the fire is under investigation.
The blaze prompted a warning from London Fire Brigade.
A spokesman said: "It looks as though the fire started in the shop’s ducting, which is the extraction system used by restaurants.
"Restaurant and take-away owners should always take care to make sure their extraction systems are kept clean as a build up of fat and grease within the filters can lead to a fire."