Firefighters rescued a man and woman from a first-floor window after a Bermondsey maisonette set alight.
Four fire engines and 21 firefighters and officers were called to a fire at Trotwood House, in Wilson Grove, off Jamaica Road.
Half of a five-roomed maisonette on the ground and first floor was damaged by the blaze.
Firefighters rescued a man and a woman from the first-floor window using a ladder.
They were treated at the scene for smoke inhalation by London Ambulance Service.
The fire brigade was called at 7.42am yesterday, Wednesday, and the fire was under control by 8.40am.
Crews from Dockhead, Old Kent Road, Deptford and Whitechapel fire stations attended the scene.
The cause of the fire is under investigation.