Large flames and smoke can be seen billowing out of the 17th floor of the high-rise building.
A large fire has started in a high-rise block of flats and offices in east London, with footage showing burning debris falling to the ground.
More than 100 firefighters are at the tower on Whitechapel High Street, in Aldgate East, with London Fire Brigade asking people to avoid the area.
Large flames can be seen fanning out of the 17th floor of the building.
One eyewitness tweeted: “Huge fire in #aldgate huge glass panels falling 100s of metres to the ground, awful scenes.”
The Metropolitan Police said the building was being evacuated.
London Ambulance Service has advised people to keep their windows closed and stay indoors.
We’re dealing with this fire on #WhiteChapel High Street. Ten fire engines & 70 firefighters are at the scene. Please avoid the area if possible. https://t.co/KM59RSlaK4
— London Fire Brigade (@LondonFire)
Whitechapel High Street is closed between Commercial Road and Old Castle Street. Commercial Road is also shut.
The fire service said the cause of the blaze was not yet known.
At the scene
BBC Radio London’s Helen Hoddinott
As soon as I got out of the Tube, the doors opened and you could smell the thick smoke in the air.
Seventeen floors up, the smoke is billowing out of a gap in the building. Four floors above that, the building is charred with smoke.
There’s a huge presence from the emergency services here.
The London Fire Brigade has brought their biggest crane of 64 metres. There are two firefighters making very slow progress towards the fire.
People are being told to avoid the area, but there are big crowds gathering to look up at the smoke.
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