The King has held audiences with new high commissioners from Tanzania and Singapore.
The 75-year-old monarch, who is undergoing treatment for cancer, first met Mbelwa Kairuki at Buckingham Palace for the formal ceremony welcoming Tanzania’s top diplomat based in the UK.
High commissioners and ambassadors based in London have a customary audience with the monarch shortly after taking up their role.
On Wednesday Charles held his weekly audience with Prime Minister Rishi Sunak, and had other meetings.