Supporters of the far-right EDL marched on Downing Street in a protest sparked by the killing of a soldier outside his barracks in Woolwich on Wednesday. Scotland Yard said 13 arrests were made during the protest and counter-protest.
Scotland Yard said three arrests had been made during the protest and counter-protest outside Downing Street.
Members of the far-right English Defence League (EDL) congregated after their march in Leicester Square, central London.
As one youth was taken away by police, the crowd began throwing bottles at them.
One officer was hit on the head with a glass bottle and the mob followed the officers, chanting "who the f*** is Allah?" before being pushed back towards the square.
Skirmishes broke out around the square, with several men threatening a youth wearing a Palestinian scarf with a stick before police intervened.
The Democratic presidential candidate may also have shown his cards on his choice of running mate.
The US president also shared a post on Twitter accusing Dr Anthony Fauci of misleading the public over hydroxychloroquine.
Fears over an impending second wave of coronavirus dominates Wednesday’s front pages.