Firefighters are tackling a blaze in North Finchley.
London Fire Brigade was called at 4pm to reports of a fire in a flat above the Hallmark card shop in High Road.
Six fire engines and 35 firefighters are at the scene.
High Road southbound is blocked, with congestion to Mayfield Avenue and traffic around the Tally Ho Corner one-way system.
For traffic updates, click here.
UPDATE
The fire was brought under control by 6.18pm. One person was treated at the scene by London Ambulance Service for smoke inhalation.
The cause of the fire is under investigation.
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