London in FLAMES: Massive 'fireball in the sky' in capital as firefighters rush to scene

Fifteen fire engines and 90 firefighters have rushed to the scene and authorities have warned people to avoid the area.

The flames are lighting up the sky at Staples Corner, a major intersection in north London near Brent Cross.

People living nearby have been urged not to open their windows and doors while firefighters try to tackle the blaze.

One social media user wrote: "Just passed the biggest fire I’ve ever seen in my life. Looks like a warehouse or something of that size near the north circular at Wembley."

Another added: "HUGE fire off north circular just now. Literally exploding, plumes of smoke. I think it is a warehouse although not confirmed."

Eyewitnesses reported hearing explosions from the fire at the factory in Waterloo Road, Staples Corner.

It remains unclear whether there are any casualties.

The fire service said its control room had already taken 45 emergency calls about the blaze.

More to follow...