King Charles briefly hospitalized amid cancer 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.

After a "short period of observation" in the hospital, the 76-year-old king returned to Clarence House, his royal residence in London, according to the palace.

As a result of the hospitalization, Charles's engagements on Thursday afternoon and Friday were postponed.

"His Majesty would like to send his apologies to all those who may be inconvenienced or disappointed as a result," the palace said in a statement Thursday evening.

Charles has been battling cancer since early last year, when the palace publicly announced his diagnosis after he underwent treatment for benign prostate enlargement.

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In announcing Charles' diagnosis, the palace did not specify the type of cancer, the stage of cancer or the type of treatment he is undergoing or planning to undergo.

After spending several weeks largely out of the public eye, Charles visited a cancer treatment center on April 30, 2024, in his first public royal engagement since his own diagnosis.

Since then, Charles has resumed a more regular schedule of public duties.

On Wednesday, he visited an exhibition at Somerset House in London and later that evening attended a reception at Buckingham Palace.