Firefighters were called to a fire at an office block on Masons Hill in Bromley, in the early hours of this morning.
A small part of an office on the second floor was damaged by fire and there were no injuries.
Four fire engines and 21 firefighters from Bromley, Beckenham, Lee Green and Sidcup fire stations attended the incident.
The Brigade was called at 0144 and the fire was under control at 0300. The cause of the fire is under investigation.