King Charles III took a trip to the hospital on Thursday because of side effects from his ongoing cancer treatment.

King Charles was hospitalized briefly, more than a year after his cancer diagnosis, due to what Buckingham Palace called "temporary side effects" of his treatment.

King Charles III was briefly hospitalized Thursday amid ongoing medical treatment for cancer, according to Buckingham Palace. Charles' hospitalization was a result of "temporary side effects" he experienced after undergoing what the palace described as "scheduled and ongoing medical treatment for cancer" on Thursday morning.

The royal family has weathered a difficult period since January 2024 when both Charles and his daughter-in-law, Kate, the Princess of Wales, were hospitalized for different medical procedures and doctors discovered they both had cancer.

King Charles waved to well-wishers as he left his London residence one day after a health setback. The British monarch, 76, was photographed being driven away from Clarence House on March 28, the day after he was briefly hospitalized for a negative reaction to his routine cancer treatment.

King Charles III smiled and waved to members of the public Friday, a day after a brief hospitalization for the side effects from his cancer treatment.

King Charles has been seen in public for the first time since he went to hospital after experiencing temporary side effects from his cancer treatment. He cancelled a trip to Birmingham on Friday on medical advice after spending a short period of time in hospital on Thursday,

King Charles' appointments were canceled after his "short period of observation in hospital," Buckingham Palace said.

Charles returns to Clarence House after a short period in hospital, palace says, but postpones Friday engagements in Birmingham.