Firefighters are reminding people of their cooking safety advice after a fire at a takeaway with flats above on Park Road in Hornsey.
Half of the ground floor was damaged by fire. Four people left the building before the Brigade arrived and were assessed for injuries on scene.
The fire is believed to have been accidental and caused by a deep fat fryer left unattended.
A London Fire Brigade spokesperson said: "Cooking should never be left unattended on the hob or grill - if you have to leave the kitchen, turn off the heat.
“Cooking with hot oil can be really dangerous and the risk increases when you start frying food more than once. All it can take is for you to become distracted for a few seconds and your cooking oil can quickly go up in flames.
“Never fill a pan more than one third full of fat or oil and make sure food is dry before putting it in hot oil – oil and water are a dangerous mix.
“If the oil starts to smoke, it’s too hot so turn off the heat and leave it to cool. We also advise using an electronic deep fat fryer if possible – they have automatic temperature controls and are much safer.
"It's also really important to keep the hob, cooker hood and extractor fan clean too – built up fat and grease can ignite and cause a fire."
The Brigade’s Control Officers took the first of 10 calls at 1137 and mobilised six fire engines and around 40 firefighters from Hendon, Tottenham, Edmonton, Finchley, Whitechapel and Homerton fire stations to the scene. The fire was under control by 1248.