Former U.S. Secretary of State Henry Kissinger was admitted to a hospital in Seoul, South Korea, on Saturday with a stomach virus, a doctor told CNN.

The state-run Yonhap news agency reported that Kissinger, 86, arrived in the South Korean capital Wednesday for a security forum and met with President Lee Myung-bak on Friday.

A special medical team did a check-up and MRI scan and took X-rays, but found nothing serious, staff sources at the hospital said.