Four fire engines and around 20 firefighters and officers were called to a fire at a restaurant in Denmark Street in Soho.
Part of the restaurant's extraction system was damaged by fire.
The Brigade was called at 1333 and the fire was under control at 1420. Fire crews from Euston, Lambeth, Dowgate and Islington fire stations attended the scene.
The cause of the fire is accidental and due to the ignition of fat from cooking.