A McDonald's has been cordoned off by police after a man in his 20s was stabbed outside.
Numerous police cars rushed to the fast food restaurant in Colindale, Barnet this evening.
At least eight police cars are at the scene, with the restaurant cordoned off from the public.
The Metropolitan Police are asking for people to avoid the area including local restaurants as road closures are in place.
An air ambulance was seen hovering over head.
A man in his 20s was stabbed during the incident, according to a BBC journalist.
No arrests have yet been made.
More to follow.