(Seoul) -- Former Secretary of State Henry Kissinger has been admitted to a hospital in South Korea after experiencing stomach pains. The 86-year-old was taken to the hospital in western Seoul earlier this morning. The "Korea Herald" reports Kissinger is expected to be discharged tomorrow. From there, he's due to fly on to China. The Nobel peace prize winner and top U.S. diplomat under President Nixon arrived in South Korea earlier this week to speak at a forum on North Korea's nuclear ambitions.