U.S. Ambassador to South Korea Mark Lippert injured in attack

The U.S. Ambassador to South Korea Mark Lippert was seriously injured Thursday morning after an armed assailant attacked him on his way to a lecture in central Seoul, the Yonhap News Agency reports.

Lippert was bleeding heavily after the attack and was rushed to the hospital. Sources told the Yonhap News Agency that the suspect was immediately arrested, although their identity is not yet known. CNN is reporting that a razor blade was used, and there is no known motive for the attack.