About 125 firefighters are tackling a major blaze at a block of flats in south-west London.
The fire quickly spread to all four floors of the building in Sherbrooke Way, Worcester Park, after fire crews were called just before 01.30 BST.
Some 20 fire engines were at the scene, the London Fire Brigade said. The cause of the fire is not yet known and no injuries have been reported.
“The whole of the four storey building is alight,” the LFB said in a tweet.
Graham Adams, station manager at the London Fire Brigade, said: “This is a challenging fire and firefighters are working hard to bring the blaze under control.
“Firefighters will remain on scene for a number of hours and we would urge people to avoid the area if possible.”
A London Ambulance Service statement said: “We sent an incident response officer, an ambulance crew, two medics in cars and our hazardous area response team.
“We have not treated any patients, however we remain on the scene as a precaution.”