In a video published to YouTube last night, British riot police in the Woolwich area of London are seen retreating from rapidly growing group of angry protesters, who shouted and hurled objects at the officers.

British Prime Minister David Cameron said today that he was recalling parliament and ordering thousands of extra police onto the streets after Britain's worst rioting in decades left parts of London and other cities in flames.

Cameron said that all police leave had been cancelled and there would be 16,000 officers on the streets of London on Tuesday night, compared to the 6,000 deployed on Monday evening.

More than 450 people have been arrested in London in the last three days, too many to hold in the city's police station jails.

This video was published to YouTube on Monday, August 9, 2011.

With AFP.