Cape Town 080115- Fire Fighters trying to stop a run away fire near Betty's Bay. The fire came close to residential houses in the area. No one was injured in the blaze. Picture Henk Kruger/Cape Argus/Cape Times/Reporter Courtney Brooks

Johannesburg - A woman is in a critical condition after a gas cylinder exploded inside her home in Bryanston, north of Johannesburg, causing a fire, paramedics said on Saturday.

Paramedics found the woman outside her house just after 5am, Netcare911 spokeswoman Santi Steinmann said.

She was treated on the scene before being taken to a nearby hospital. - Sapa