King Charles's medical team 'concerned' after major announcement during break from cancer treatment

The Palace planned for the King to take time off on his return, allowing him to recover and for doctors to assess his health.

They announced that long-term plans for the King to resume twice-yearly overseas tours next year are in place, subject to doctor's approvals.

King Charles was diagnosed with cancer in February this year and temporally stepped back from royal duties.

He returned to undertaking engagements in late April this year, with a senior palace official saying Charles thrives on undergoing engagements and meeting with the public.

The official added: "The King gets great strength from the Queen being there, not least because she keeps it real."

"A great measure of the way that the King is dealing with his [cancer] diagnosis, and he's a great believer in mind, body and soul, and this combination works very well on a visit like this, because he feels that sense of duty so strongly.

They said: "It's hard to overstate the joy that he takes from duty and service and being in public and seeing those crowds engaging with communities across the spectrum.

"That really does lift his spirits. You can see that."

The King and Queen spent six days in Australia before jetting off to Samoa, where the King addressed the Commonwealth Heads of Governments for the first time since he became Head of the Commonwealth.

The tour of the South Pacific has been described as hugely successful despite minor republican protests.

The monarch said: "We've been so impressed by the beautiful way in which all the villages have decorated the roadsides, it is something very special about Samoa."

He added: "I shall always remain devoted to this part of the world and hope that I survive long enough to come back and see you."

Queen Camilla was photographed in tears during the ceremony that marked the end of her and King Charles's time in Samoa.

The royal couple boarded their plane in the pouring rain, bidding farewell to Samoa and officially concluding their first overseas royal tour since Charles's cancer diagnosis.