Buckingham Palace Shares a New Photo of King Charles amid Cancer Diagnosis

On Monday, Buckingham Palace announced that the 75-year-old monarch has been diagnosed with cancer after undergoing a procedure to treat an enlarged prostate

Buckingham Palace has released a new photo of King Charles amid his cancer diagnosis.

The photo — which shows the 75-year-old British monarch standing in a doorway dressed in a navy blue pinstripe suit — was taken by photographer Samir Hussein at the British Ambassador's residence during a September 2023 state visit to France.

The portrait accompanied an official statement from the palace on Monday, announcing that the King has cancer.

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

Related: A Complete Timeline of King Charles' Cancer Diagnosis and Treatment

"His Majesty has today commenced a schedule of regular treatments, during which time he has been advised by doctors to postpone public-facing duties," the palace continued, noting that King Charles would continue to undertake state business and official paperwork "as usual" during his treatment.

"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 statement added.

"His Majesty has chosen 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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Related: Will Prince William Step In for King Charles Following Monarch's Cancer Diagnosis?

PEOPLE understands that the King has personally told his sons, Prince William and Prince Harry, and siblings, Princess Anne, Prince Andrew and Prince Edward, about the diagnosis.

Harry, 39 — who resides in California with wife Meghan Markle and their two children, Prince Archie and Princess Lilibet — will travel to London in the coming days to visit his father, PEOPLE understands.

President Joe Biden spoke to reporters on Monday about the news of King Charles' diagnosis. "I'm concerned about him," Biden, 81, said. "Just heard his diagnosis."

He noted that he had not yet spoken to the King about his illness, adding, "But I'll be talking to him, God willing."

King Charles underwent his prostate procedure last month. He was released from the hospital on Jan. 29 following a three-day stay. On Sunday, he made his first public outing since the procedure, attending a service at St. Mary Magdalene Church near Sandringham with Queen Camilla.

The King returned to London on Monday to begin treatment as an out-patient.

Also on Monday, it was announced that Prince William, 41, will return to public duty this week. He had cleared his work schedule to help care for wife Kate Middleton following her Jan. 16 abdominal surgery. The Princess of Wales, 42, is continuing her recovery at home in Windsor after a 13-day hospital stay in London.

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