Striking scenes of protesters breaking into the US Capitol building have shocked people around the world.
The images of Donald Trump supporters clashing with police, breaking windows and occupying the Senate chamber have drawn criticism from UK Prime Minister Boris Johnson and even the NATO secretary general.
In the final days of the outgoing US president's administration, they were a powerful reminder of how bitterly divided the country is two months since Joe Biden won the race for the White House.
Image:A large number of Pro-Trump protesters storm the Capitol building during the rally
Image:A protester who gained entry to the Capitol carried a Confederate flag
Image:Protestors cover their faces as tear gas travels through the air
Image:Some people were seen climbing the west wall of the the Capitol
Image:A police officer confronted supporters of Mr Trump as they demonstrated on the second floor of the Capitol
Image:A woman in the House gallery put on an 'emergency hood'
Image:People were forced to shelter in the House gallery
The shocking pictures drew an appeal from Mr Biden to his soon-to-be-predecessor to "step up" and call off the protesters.
Mr Trump later urged them to "go home" and "respect our great people in law and order" but repeated claims the election was "stolen" - something that has been refuted multiple times in different US courts.