Officers are responding to a major fire at one of Britain's largest Jewish supermarkets in Golders Green.
Emergency services are in attendance at the Kosher Kingdom on Golders Green Road near the junction with Beverley Gardens.
The London Fire Brigade has advised residents to stay away from the area while fire crews tackle the blaze.
The cause of the fire is not yet known.
A spokesman from the brigade said: "A number of road closures are in place, including on Golders Green Road near the junction with Beverley Gardens.
"Please avoid the area whilst firefighters work to extinguish the fire.
"The Brigade received the first of 33 calls about the fire at 6.47am.
"Control Officers have mobilised ten fire engines and around 70 firefighters from Finchley, Willesden, West Hampstead and surrounding fire stations to the scene. A 32-metre turntable ladder is also in attendance."
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A fire has broken out at a warehouse behind the supermarket
A Met Police spokesman told GB News: "At around 7am on Wednesday, May 27,m police were called by the London Fire Brigade who were responding to a fire in Golders Green Road, Barnet.
"Officers responded and are at the scene assisting firefighters with road closures and evacuations. Fortunately, there have been no reports of any injuries.
"This is an ongoing incident with the focus on dealing with the fire and ensuring the safety of the public. It is too early to have determined the cause.
"We will provide further updates when we are able to."