King Charles III used social media on Friday, Dec. 12, to deliver an update on his cancer treatment.

King Charles will share details of his experience with cancer and give an update on his treatment in a personal message broadcast on British television on Friday, Buckingham Palace said.

In a televised message to the nation, the monarch said he had reached a “milestone” in his treatment, calling it a “personal blessing” and giving thanks for early diagnosis and medical advances.