Multiple road closures are in place in north London after a 36-inch water main burst, causing flooding up to four feet deep.
Eight fire engines and around 60 firefighters are attending the scene on Hornsey Road.
A spokesperson for LFB said: “Flood water is affecting Hornsey Road and Tollington Road.
“There are multiple road closures in place while crews work to make the scene safe. People are urged to avoid the area.
“The Brigade’s 999 control officers have taken 12 calls to the incident.
“Fire crews from Holloway, Islington, Kentish Town, Stoke Newington and surrounding fire stations are at the scene.”
A spokesperson from Thames Water has told residents on social media that the supplier is aware of the incident and a team is on site.