More than 35 firefighters and officers are dealing with a flooding following a burst water main on Avenue Road in Primrose Hill.
Twenty five people were assisted from their homes and temporarily relocated to nearby houses.
The water is up to a metre deep in the deepest section of the flooding and about half a mile of street is affected.
Station manager Matt Burrows, at the scene, said: “Crews carried residents from the flat most affected by the flooding and we are now laying sandbags to protect the other properties as much as we can.
“We are working closely with residents along the street to work out who we need to evacuate and who should stay in their home.
“Avenue Road is a long residential street and is used as a bit of a thoroughfare so this is causing quite bit of disruption so avoid the area if you can.”
Six fire engines from West Hampstead, Paddington, Euston and Kentish Town fire stations are at the scene.
The Brigade was called at 5.30am this morning.
Firefighters are still at the scene.
More to come on this breaking story.
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