Anti-racism protestors clash with mounted police in Britain

Anti-racism protestors in the UK clashed with mounted police on Saturday after thousands gathered in central London to voice their anger at police brutality after the killing of George Floyd in Minneapolis, US.

Saturday's protests reflect global anger over police treatment of ethnic minorities, sparked by the May 25 killing of Floyd, a black American, when a white police officer detaining him knelt on his neck for nearly nine minutes as fellow officers stood by.

In London, after a largely peaceful day, small numbers of protestors near Prime Minister Boris Johnson's Downing Street residence threw bottles at police, and mounted officers charged to push them back.

One officer required hospital treatment after falling from her horse, and nine others were injured.

A group of protestors attacked a dummy resembling US President Donald Trump, while others threw flares.

Thousands of protestors also crowded into the square outside Parliament, holding "Black Lives Matter" placards and ignoring government advice to avoid large gatherings due to the risk from coronavirus.

Reclusive street artist Banksy published a new artwork online showing the U.S. flag being set alight by a candle that formed part of a memorial to an anonymous, black silhouetted figure.

Earlier in the day, more than a thousand protestors marched past the US Embassy on the south bank of the River Thames.

Before Saturday's protest in London, the US ambassador to Britain condemned Floyd's death and said the United States needed to do more to fight racism and injustice.

"It is through peaceful protests that injustice is most successfully addressed," said Ambassador Woody Johnson.

Demonstrations also took place in other British, European and Asian cities on Saturday, after tens of thousands of people chanting "No justice, no peace, no racist police" marched through central London on Wednesday.