Fights have broken out ahead of a football match between Cologne and Arsenal.
Hundreds of German fans marched through central London to a drum beat ahead of the Europa match.
There are around 20,000 FC Köln fans in London for the fixture, many gathered in Oxford Street, and the majority have not caused any trouble.
However, a minority have become violent, with reports of people punched and kicked.
Footage shows a scuffle breaking out to the side of the main march, with bystanders trying to intervene.