"During The King’s recent hospital procedure for benign prostate enlargement, a separate issue of concern was noted," Buckingham Palace said in an emailed statement to NBC. "Subsequent diagnostic tests have identified a form of cancer."
Queen Elizabeth II has been staying at Windsor Castle since the COVID-19 pandemic started, and a royal source recently claimed she might not go back to Buckingham Palace ever again.
British Prime Minister Boris Johnson got the nod from Queen Elizabeth II to use the grounds of Buckingham Palace for his daily sprints amid the security concerns.