A massive London march organised by far-right activist Tommy Robinson has become unruly as a small group of his supporters clashed with police who were separating them from counter-protesters.
Several officers were punched, kicked and struck by bottles tossed by people at the fringes of the Unite the Kingdom rally, Metropolitan Police said.
There were nine arrests, with many more likely, the force said, as violence flared at the protest, which featured a video cameo appearance from Tesla and X owner Elon Musk.
Police estimated that Robinson drew about 110,000 people, while the rival March Against Fascism protest organised by Stand Up To Racism had about 5000 marchers.
More than 1600 officers were deployed in total across the city, with 500 brought in from other forces, the Metropolitan