Six fire engines and around 40 firefighters tackled a pub fire on Asylum Road in Peckham.
Part of the basement was damaged by fire. There were no reports of any injuries.
Staff were alerted to the fire when smoke alarms sounded and they could smell smoke. On investigation, they found the basement was heavily smoke logged and left the building before calling the Brigade.
The Brigade was called at 1943 and the fire was under control by 2044. Fire crews from Brixton, Forest Hill, New Cross, Deptford and surrounding fire stations attended the scene.
The fire is believed to have been accidental, but the exact cause has been recorded as undetermined.