Twelve fire engines and around 80 firefighters were dispatched to tackle a blaze at a building in North London.
The incident broke out close to Turnpike Lane tube station on the high street.
“The fire is now under control but firefighters will remain on scene through the night working to fully extinguish the fire,” the LFB said in a statement.
The LFB received the first of 25 calls reporting the fire at 21.25pm on Monday, July 6, with the blaze brought under control by approximately midnight.
Crews were deployed from Hornsey, Tottenham, Southgate, Holloway and neighbouring fire stations to attend the scene.
The cause of the fire remains unknown at this stage.
15 residents were safely evacuated from the affected properties.
Two individuals were transported to hospital by the London Ambulance Service for treatment of smoke inhalation.
Road closures remain in force on High Road near the junction with Turnpike Lane.
The LFB has urged members of the public to steer clear of the area and to anticipate some disruption to traffic.