Prince Harry has been urged to return to the UK and help the Royal Family, after two senior royals are to be hospitalised with health concerns.
This week, King Charles and the Princess of Wales announced that they are seeking hospital treatment for different conditions.
King Charles was diagnosed with an enlarged prostate on Wednesday, and is to undergo a "corrective procedure" next week.
Princess Kate has announced she had "successful" planned abdominal surgery on Tuesday, and Kensington Palace announced the operation on Wednesday, just hours before King Charles shared his news.
King Charles and Princess Kate have announced major health updates this week
PA
In an official statement posted to Kensington Palace's official Instagram page, it was confirmed that she is "unlikely to return to public duties until after Easter."
Buckingham Palace also confirmed that the King has "postponed public engagements for a short period of recuperation."
Queen Camilla and Prince William are also expected to step back from royal duties to look after the King and Princess of Wales respectively.
Speaking to GB News, Royal Correspondent Michael Cole called on Prince Harry to "step up" and return from California to his family.
Cole told GB News that Prince Harry was an "extremely popular" member of the Royal Family, and the absence of the Duke and Duchess of Sussex "highlights the sadness and regrettable decision" made by Harry and Meghan to step back from royal life.
He added: "He was an extremely effective member of the family.
"He speaks well, he's hugely sincere in what he says and does, and he could be stepping up right now, helping his father, helping his brother, being there.
"Prince William has said that he's cutting back his schedule so that he can be close to his wife and look after his children at this difficult time.
Prince Harry has been urged to help his family in their hour of need
GB News / PA
"So wouldn't it have been good for Prince Harry to have supported his brother and his family instead of allowing very unkind and cruel things to be said about Kate in both his books Spare and in books which appear to have been written with his approval, if not cooperation?"
Michael Cole claimed that Prince Harry and Meghan may have "won a place in the hearts of British people" again, had they returned to the firm to help.
Cole stated: "I am wondering, sitting on their hilltop fortress in California, how they are pondering this turn of events.
"They would have had a chance to star. In the absence of the King and the Princess of Wales in hospital, they would have had a chance to pick up the slack. To be shown to be pulling their weight."