Around 125 firefighters are tackling a major blaze at at three two-storey warehouses with huge orange flames seen lighting up the sky in east London.
Residents in Ilford have been told to keep their doors and windows closed until the fire is brought under control.
Many people have taken to social media to post videos of the roaring fire which has spread across several warehouses on Fowler Road and could be seen on the skyline across east London.
Fire crews from Ilford, Dagenham, Romford, Woodford and stations in the surrounding area have been scrambled to attend the fire.
London Fire Brigade tweeted: "Twenty fire engines and around 125 firefighters are at the scene of a fire on Fowler Road in #Ilford. Firefighters are tackling blaze where a range of warehouses are alight. More information to follow."
The fire began shortly after 9pm with the cause not yet known.
A Fire Brigade statement added: "Firefighters are tackling a fire where three two-storey warehouses are alight.
"The Brigade was called at 2107. Fire crews from Romford, Dagenham, Ilford, Woodford and other fire stations in the surrounding area are at the scene.
"The cause of the fire is not known at this stage."
Redbridge Police have said that Romford Road, New North Road and Fowler Road have all been closed.
It tweeted: "We are assisting our colleagues from @LondonFire as they respond to a large fire in Fowler Road, Ilford.
"Local residents are urged to avoid the area & keep their windows closed due to the smoke Road closures are in place including on Romford Road, New North Road and Fowler Road."
Meanwhile, Ilford North MP Wes Streeting has tweeted his thanks to the London Fire Brigade for its efforts in tackling the blaze.
He wrote: "Huge thanks to the London Fire Brigade for their response to the fire on the Hainault industrial estate. I hope that no one is hurt and that everyone is safe."
