King Charles diagnosed with cancer, Buckingham Palace says

King Charles III was diagnosed with a form of cancer and is undergoing treatment, Buckingham Palace announced Monday.

"During The King’s recent hospital procedure for benign prostate enlargement, a separate issue of concern was noted," Buckingham Palace said in a statement. "Subsequent diagnostic tests have identified a form of cancer."

A source confirmed to Fox News Digital that Prince Harry and King Charles spoke about his diagnosis before His Majesty went public with his health concerns.

"The duke did speak with his father about his diagnosis," a source confirmed to Fox News Digital. In addition, Harry "will be traveling to UK to see His Majesty" in the coming days.

KING CHARLES MAKES FIRST PUBLIC OUTING SINCE PROSTATE TREATMENT, WAVES TO WELL-WISHERS OUTSIDE CHURCH

King Charles III was receiving treatment for an enlarged prostate at the London Clinic. (Mark Cuthbert/UK Press via Getty Images)

The Duke and Duchess of Sussex stepped down from senior royal responsibilities and moved to California in 2020, nearly two years after they married at Windsor Castle.

In addition to his youngest son as well as Prince William, the monarch reportedly advised his siblings – Prince Andrew, Princess Anne and Prince Edward – about his diagnosis prior to the public revelation, according to People magazine. 

King Charles was "advised by doctors to postpone public-facing duties" while undergoing a series of "regular treatments," a statement from the palace said. It's unclear what cancer diagnosis His Majesty received.

KING CHARLES RELEASED FROM HOSPITAL FOLLOWING PROSTATE TREATMENT

"Throughout this period, His Majesty will continue to undertake State business and official paperwork as usual," a statement said. 

King Charles III leaves the London Clinic with Queen Camilla after receiving treatment for an enlarged prostate. (Mark Cuthbert/Getty Images)

"The King is grateful to his medical team for their swift intervention, which was made possible thanks to his recent hospital procedure. He remains wholly positive about his treatment and looks forward to returning to full public duty as soon as possible."

The announcement stated that Charles chose to share his diagnosis to "prevent speculation and in the hope it may assist public understanding for all those around the world who are affected by cancer."

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One day prior to announcing his cancer diagnosis, the king made his first public appearance since receiving treatment for an enlarged prostate. The British monarch waved to well-wishers outside of St. Mary Magdalene Church near Sandringham with his wife, Queen Camilla.

King Charles III and Queen Camilla were accompanied by The Reverend Canon Dr Paul Williams at the Church of St Mary Magdalene on the Sandringham estate for Sunday services.  (Max Mumby)

King Charles III was discharged from the hospital last Monday after spending three nights in The London Clinic following a corrective procedure for an enlarged prostate. (Max Mumby)

On Jan. 17, King Charles III was scheduled to have a "corrective procedure" for his enlarged prostate. The palace later announced that the surgery had been a success. "His Majesty is doing quite well," a royal source told Fox News Digital.

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Charles, who ascended the throne following the death of Queen Elizabeth II, was diagnosed with the benign condition in January after he experienced undisclosed symptoms. 

The London Clinic had another royal patient last month with William's wife, Kate Middleton, receiving medical attention for a planned surgery, Kensington Palace confirmed to Fox News Digital.

Kate Middleton was hospitalized last month for a planned abdominal surgery. (Samir Hussein)

"Her Royal Highness The Princess of Wales was admitted to The London Clinic yesterday for planned abdominal surgery," the palace said in a statement released on Jan. 17. 

"The surgery was successful and it is expected that she will remain in hospital for ten to fourteen days, before returning home to continue her recovery."

On the recommendation of her doctors, the princess will not resume her public duties until Easter, palace officials said. 

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