Papua New Guinea declares Britain's King Charles III head of state

The Princess Royal met James Marape earlier this year (Kirsty O’Connor/PA)

The leaders of Papua New Guinea have held a ceremony to honour Britain's Queen Elizabeth II and proclaim King Charles III as the country’s new head of state.

Governor-General Bob Dadae and prime minister James Marape were joined by dignitaries at the ceremony outside the country's parliament in the capital Port Moresby.