Four fire engines and around 20 firefighters and officers attended a fire on Grahame Park in Edgware in the early hours of this morning.
Half of a three roomed flat on the third floor was damaged by fire, fortunately there were no injuries.
Firefighters from Mill Hill, Hendon and Stanmore fire stations attended the incident.
The Brigade was called at 0015 and the fire was under control at 0142. The cause of the fire is under investigation.