Fire crews are currently battling a huge blaze at a block of flats in London.
The fire broke out at a residential tower block on Whitechapel High Street in the east end of the city at around 3.55pm this afternoon.
The London Fire Brigade service quickly sent 10 appliances and 70 firefighters to the scene, who are currently tackling the blaze.
It's understood the building is the Relay Building, which is a 21-storey residential block, reports the Mirror Online.
Metropolitan Police confirmed an evacuation of the building was underway.
Dozens of calls to the emergency services flooded in after the inferno broke out and locals have reported seeing glass panels crashing down from the building.
Firefighters are still working to tackle the blaze and have been using a 64-metre ladder and two cranes to reach the affected properties.
The building is split into two sections - with the lower floors being used as offices while the top floors - where the fire broke out - are residential.
It's understood that all residents have now been evacuated from the building.
Earlier, the fire brigade wrote: "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."
Witness Owen Willis told our sister title the Mirror: "From the eastern view, on Commercial Road, we can see a row of windows blown out with fire burning on the ceilings still.
"It’s very windy so it looks like the smoke and flames are blowing all over the place.
"Seems to be dying down a bit although that’s just what we can see from outside."
Earlier today another tweeted a video showing raging orange flames climbing up the side of the glass high-rise tower as clouds of dark smoke billowed into the sky.
He captioned the video, saying he could see "huge" glass panels falling "100s of metres" from the tower.
A MyLondon reporter at the scene has confirmed the blaze is still active but that it is "beginning to die down".
She said: "The only flames now are on the balcony. It has affected the fifth-to-top floor and the floor above, as well as the balcony on that floor and the one above.
"Three windows can be seen broken on one side, and four on the other. The fire appears to have spread from one balcony and upwards. Lots of smashed glass can be seen on the road, especially outside Aldgate East station and Paddy Power."
A nearby building has also been evacuated with the residents having been taken to nearby park for safety.
A Metropolitan Police spokesperson said: "We were called to the scene at 15.55 to reports of a fire on Whitechapel High Street by the emergency services.
"The building is being evacuated."
The London Ambulance Service is also at the scene.
In a statement, they said: "We are responding to a fire on #Whitechapel High Street with our emergency service colleagues.
"If you are in the local area, please try and stay indoors and keep windows and doors closed. More updates to follow."
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