Four fire engines and around 25 firefighters were called to a fire at a shop with flats above on Elmers End Road in Beckenham.
Part of the ground floor shop was damaged by the fire. A small part of the fascia, guttering and windows of an adjacent property were also damaged. Firefighters cooled and removed one gas cylinder to make the safe as some cylinders can explode when exposed to heat.
Firefighters wearing breathing apparatus rescued one man and a baby from the first floor window via a ladder. Another woman was rescued by crews wearing breathing apparatus via an external staircase. They were all assessed on scene by London Ambulance Service crews.
The fire was discovered by a neighbour who smelt burning and saw the fire at the rear of the shop.
The Brigade was called at 1558 and the fire was under control by 1723. Fire crews from Beckenham, Woodside and West Norwood fire stations attended the scene.
The cause of the fire is under investigation by the Brigade and the Metropolitan Police Service.