Two SUVs were seen at the royal residence, and later a positive-looking Charles and Queen Camilla were spotted. The king then flew to Sandringham.

Royal commentators speculate on the possibility of the health scare bringing Charles and Harry closer together, although mending Harry's relationship with his brother, Prince William, appears more challenging. Prince William reportedly had no immediate plans to see Harry.

The nature of the king's cancer has not been disclosed except to confirm it's not prostate cancer, and Charles will now withdraw from public duties to undergo treatment. Hopes for family unity are strong, despite past grievances aired by Harry and his wife Meghan through media projects.

UK Prime Minister Rishi Sunak said the king's cancer was detected early, expressing hopes for a full recovery. Charles ascended the throne just 17 months ago after the death of Queen Elizabeth II.

The diagnosis contributes to a shortage of working royals due to health setbacks in the family. Prince William is expected to resume his royal obligations after stepping back to care for his wife, Catherine, during her recent hospital stay.

Meanwhile, Charles will continue with administrative responsibilities and paperwork, maintaining a positive outlook, and aims to return to full duties soon.