Indigenous activist Wayne Wharton was arrested outside the Sydney Opera House, as crowds waited for the King and Queen during the last day of their Australia tour.
BBC footage shows Wharton shouting "he is a King of thieves" and "you have the blood on your hands of invasion" to crowds, who responded with chants of "God save the King".
Wharton is then arrested after refusing a police order to move on, shouting "you don't win" as he is escorted away by police.