New Delhi, April 11 -- Cambodia's King Norodom Sihamoni announced Friday that he has prostate cancer and will be undergoing treatment for it in China, where he was diagnosed with the disease.

In a statement he posted on his Facebook account and carried by Cambodia's state news agency AKP, the 72-year-old constitutional monarch said he was diagnosed with the cancer during a medical examination at a state hospital in Beijing. He and his mother, Queen Mother Norodom Monineath, traveled there at the end of February for their routine checkups.

Sihamoni's message did not mention how serious his condition is. Prostate cancer is usually treatable if detected at an early stage. According to the American Cancer Society, about one in eight men wil...