King Charles faced shouts of "you are not my King" from an independent senator after he finished an address at Australia’s Parliament House.
The incident happened on the second official day of his engagements in the country.
Lidia Thorpe, an Aboriginal Australian woman, interrupted the ceremony in the capital city of Canberra before she was escorted away by security.
After making claims of genocide against "our people", she could be heard yelling: "This is not your land, you are not my King."
But Aboriginal elder Aunty Violet Sheridan, who had earlier welcomed the King and Queen, said Thorpe’s protest was "disrespectful", adding: "She does not speak for me."
The ceremony concluded without any reference to the incident, and the royal couple proceeded to meet hundreds of people who had waited outside to greet them.
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