Firefighters are tackling a grassland blaze covering the size of three football pitches.
The flames are raging across three hectares of scrubland on the Tottenham Marshes in Lee Valley Park, near Marigold Road.
Crews were called at 7.53pm this evening (Tuesday) and more than 60 firefighters are currently working to quell the flames by using grass beaters and water backpacks.
A London Fire Brigade spokesman said: "Crews are working hard to bring this fire, which is covering an area the size of around three football pitches, under control.
"Grass fires cause a great deal of damage to open spaces, property and wildlife but the public can help us stop them from starting by making sure that their cigarettes and barbecues are extinguished properly, and that glass bottles, which can concentrate the sun's rays onto dry grass, are disposed of carefully.
"It's also important that if you do notice a fire on open grassland or in woodland that you don't attempt to put it out yourself as grass fires can travel very quickly and change direction without warning.
"Call the fire brigade and let us know where the fire is so we can get firefighters on the scene as soon as possible to stop it from spreading any further."
Crews from Tottenham, Walthamstow, Hornsey, Edmonton and Stoke Newington are at the scene.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here