British-Nigerian World Heavyweight champion, Anthony Joshua, Thousands of people to participate in anti-racism demonstrations across the UK.
At a protest in Watford, Anthony Joshua told the crowds: “We can no longer sit back and remain silent on this senseless, unlawful killing and sly racism on another human being.”
The protests, sparked by the death of George Floyd in the US, were held in cities including London, Manchester, Cardiff, Leicester and Sheffield.
In London, protesters knelt for a minute’s silence before chanting “no justice, no peace” and “black lives matter”.
The majority of the day’s protests were peaceful but in the evening there were disturbances outside Downing Street.
BBC home affairs correspondent Tom Symonds said the protest was largely over when missiles and fireworks were thrown at a police line.
Police horses were used to regain control, but one horse galloped ahead and its rider fell to the ground after hitting her head on a traffic light. Her injuries are not life-threatening, the Metropolitan Police said.
Fourteen people were arrested and 10 officers were injured after a smaller group became “angry and intent on violence”, the force added.