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.
The London Fire Brigade's 999 control officers have taken more than 40 emergency calls.
What's this fire in Mill Hill? pic.twitter.com/me4WdizNkF
— GavinWA (@GAV_GWA) June 5, 2023
A spokesperson said on Twitter: "Please avoid the area".
This article will be updated as information comes through.
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