The London Fire Brigade said connected societal media astir 70 firefighters were astatine the occurrence successful a extortion successful West Hampstead, which has been brought nether control.
The brigade said portion of the extortion of a location successful Lyncroft Gardens was connected fire.
Firefighters person evacuated astir 25 radical to safety.
There were nary reports of immoderate injuries.
London Fire Brigade/PA Wire
Station Commander Ken Spratt, who is astatine the scene, said: “One of the Brigade’s 64-metre turntable ladders is being utilized astatine the country arsenic a h2o operation to tackle the occurrence from height.
“Drones are besides being utilized to survey the incidental from above, providing incidental commanders with an aerial presumption to enactment with processing tactics.
“West Hampstead Fire Station has been acceptable up arsenic a remainder centre for residents affected by the fire.”
The London Fire Brigade said the archetypal telephone was made conscionable aft 3am with unit from West Hampstead, Paddington, North Kensington and Hendon connected the scene.