People are being urged avoid Mill Hill as fire crews tackle a blaze.

Ten fire engines and around 70 firefighters have been called to a fire on Northway Crescent.

Huge plumes of smoke can be seen near Apex Corner reported @jonathanjoseph on Twitter. 

Times Series: Flames billow from blaze in Mill HillFlames billow from blaze in Mill Hill (Image: Philip Gale)

The London Fire Brigade's 999 control officers have taken more than 40 emergency calls.

A spokesperson said on Twitter: "Please avoid the area".

This article will be updated as information comes through.