The King has been berated by an Australian senator who accused him of “genocide” against her nation’s indigenous people and declared: “You are not my king”.

Lidia Thorpe, who campaigns on First Nations issues, disrupted Charles’s welcome to the capital Canberra with her outburst which overshadowed a speech by the King highlighting his debt to the descendants of Australia’s first inhabitants.

Her comments were criticised by Australia’s prime minister Anthony Albanese, who attend the event and later told The Australian newspaper: “The actions of the independent senator in the Great Hall were disrespectful. This is not the standard of behaviour Australians rightly expect of parliamentarians.”

Charles and Camilla have faced low-key demonstrations during their tour of Australia, which began on Monday, from supporters of First Nations resistance to colonisation, who have been displaying a banner with the word “decolonise” at a number of events.

But the protest from the elected representative is likely to be seen as an embarrassment for Charles, who is making his first visit to Australia as King.

After the King spoke to guests at Parliament House, Ms Thorpe, who wore a possum skin coat and carried a traditional message stick, shouted: “You are not our King, you are not sovereign … you have committed genocide against our people.

“Give us our land back. Give us what you stole from us … Our babies, our people. You destroyed our land.”

The King and Queen walk through the Rainforest Gully during a visit to the Australian National Botanic Gardens
The King and Queen walk through the Rainforest Gully during a visit to the Australian National Botanic Gardens, in Canberra, on day two of the royal visit to Australia and Samoa (Arthur Edwards/The Sun/PA)

As she was gently ushered from the building’s hall, she screamed: “Give us a treaty – we want a treaty with this country … This is not your land, this is not your land, you are not my king, you are not our king.”

She said she was prevented from handing the King a “notice of complicity in Aboriginal genocide” according to the Statute of the International Criminal Court 1998.

It is understood the King was unruffled and did not let the outburst overshadow what the royal party viewed as a positive day in the Australian capital.

Aunty Violet Sheridan, a senior Ngunnawal Elder who formally welcomed Charles and Camilla to her ancestral lands when they entered Parliament House, said the senator did not speak for her.

She said: “We are all so disappointed by it. To have that in the Great Hall – disgusting. I am so upset about her. He has waited so long to be king, he has rehearsed for it all his life.

“He is our king, our sovereign and he has got cancer.”

Charles and Camilla were earlier welcomed at Canberra airport with a traditional smoking ceremony where guests wafted burning eucalyptus over themselves, chosen for its health benefits in light of the King’s ongoing cancer treatment.

The royal couple commemorated Australia’s war dead at the national memorial, laying floral tributes as hundreds of well-wishers turned out to see the couple – including an alpaca who sneezed in front of the King.

But the protest will make headlines and the senator said later in a statement: “The British Crown committed heinous crimes against the First Peoples of this country.

“These crimes include war crimes, crimes against humanity and failure to prevent genocide. There has been no justice for these crimes. The Crown must be held accountable.”

In a statement before her outburst the senator criticised Mr Albanese, claiming his government had backed down on a treaty with Australia’s First Nations.

Mr Albanese has a long-term aim of steering Australia towards a becoming a republic but the plans are on hold after Australians overwhelmingly rejected a plan to give greater political rights to indigenous people in a referendum held last year.

In a speech before Charles’s address, the prime minister said to Charles: “You have shown great respect for Australians even during times when we have debated the future of our own constitutional arrangements and the nature of our relationship with the crown.

Royal Tour of Australia and Samoa – Day Two
Before the intervention of Senator Thorpe the King and Queen had paid their respects at the Australian War Memorial. Ian Vogler/The Daily Mirror

“Nothing stands still.”

The royal family have increasingly been confronted with the issues of colonialism, reparations for slavery and improved rights for indigenous people during visits to Commonwealth countries.

In 2022, the Prince and Princess of Wales’ tour of Jamaica was heavily criticised for images said to smack of “colonialism”, with one picture showing the couple shaking hands with children who had pushed their arms through a link fence.

The visit was a landmark moment for the monarchy when the growing awareness of racial inequality, in light of the Black Lives Matter movement, shifted how tours were viewed.

Charles also spoke about the move towards healing divisions within society in his address: “In my many visits to Australia, I have witnessed the courage and hope that have guided the nation’s long and sometimes difficult journey towards reconciliation.

“Throughout my life, Australia’s First Nations peoples have done me the great honour of sharing, so generously, their stories and cultures. I can only say how much my own experience has been shaped and strengthened by such traditional wisdom.”