bout 100 firefighters are tackling a fire at a block of flats in east London.
Fifteen engines and around 100 firefighters have been called to the fire on De Pass Gardens, Barking, London Fire Brigade said in a tweet.
The force added the sixth floor of the block is currently alight.
Pictures showed part of the building engulfed by flames with black smoke billowing into the air.
A spokesman for the Metropolitan Police said there had been no reports of injuries at this stage.
The London Ambulance Service said it was called at 3.30pm on Sunday and sent two ambulance crews, two solo responders and its Hazardous Area Response Team.
A spokeswoman for the LAS said: “We have a tactical commander and our command support vehicle at the scene. We also dispatched London’s Air Ambulance.
“There are no reports of any injuries at the moment.”
Nearby residents had been evacuated and road closures are also being put in place by the police.
The force added it is assisting the LFB and have dubbed it as a “major incident”.
In a statement, the LFB said: “The Brigade was called at 3.31pm and is still at the scene. Fire crews from Barking, Dagenham, East Ham and surrounding fire stations are at the scene.
“The cause of the is not known at this stage.”
The “ground floor to the sixth floor are alight”, London Fire Brigade tweeted.
Fifteen fire engines were called to the scene in Barking.
Police said people were being evacuated and road closures put in place.
No injuries have been reported, Scotland Yard said.