A youth armed with a huge knife brandished it in front of a rival during a mass brawl outside Wembley Stadium.
Shocked residents watched on in horror from the balconies of their apartments.
The horror scenes took place on Olympic Way — also known as Wembley Way — under the 90,000-capacity stadium’s famous arch.
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Three young men were first seen chasing one another alongside the steps that lead up to the Bobby Moore statue.
Then two more squared up to each other on the pedestrianised area in front of the stadium.
Three more piled in and one swung the huge blade at one of them.
Luckily, he doesn’t make contact and the intended victim isn’t hurt.
He appears to then pass the long knife to another as he crosses Engineers Way and tucks it in the waistband of his trousers.
Some of the youths then walked off up Olympic Way, which tens of thousands of football fans walk along to and from matches.
The 48-second video, recorded by a worried onlooker, then came to an end.
It happened last (Oct 22) night at about 7pm.
It comes just three days before the Lionesses are set to face Germany at Wembley Stadium, northwest London on Friday (Oct 25).

The England men’s team last played there on October 10 in a 2-1 defeat to Greece in the Nations League.
Locals reacted with horror to the worrying scenes, as reported on Need To Know.
One, named Blake, said: “Can’t people go a night without feeling the need to plunge a knife into somebody.”

Lucy Speed called on Home Secretary, Yvette Cooper, and London Mayor, Sadiq Khan, to act.
She said: “When are you going to start dealing with this?”
Another, called Ryan, said: “This is scary.
“This is Britain.”
A fourth said: “London is truly finished.

“London used to be beautiful.
“Now it’s full of human trash.”
A Met Police spokesperson said: “On Tuesday, 22 October police were called to Engineers Way, Wembley at 11:36pm following reports of a fight that involved a knife.
“Officers attended the scene and carried out all relevant enquiries.
“There were no reported injuries.
“At this early stage, there have been no arrests and enquiries into the circumstances are ongoing.
“If you have any information that may be relevant to police then please call 101 stating CAD8349/22OCT.”
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