Station Manager Bruce Grain, from nearby Brixton fire station, is at the scene, he said:
“We were called to reports of a fire and explosion. Firefighters are on the scene at the moment and have managed to bring the fire under control."
"The building has been severely damaged so we are not sure at this stage what the building was being used for. As soon as it’s safe to do so, our fire investigators will be working to establish exactly what happened.”
More top news
This weekend you can do take a look inside some of London's most iconic buildings.
The family of a father-of-three from East Ham have made a fresh appeal to catch his killer 20 years after he was murdered.
The Metropolitan Police has paid £45,000 in damages in an out-of-court settlement following the 'unlawful arrest' of a black motorist.