The U.S. ambassador to South Korea, Mark Lippert, was injured in an attack by a razor-wielding assailant Thursday in Seoul, police and television reports said. The YTN news channel, citing police sources, said a man with a razor blade concealed in his right hand had attacked Lippert as he was attending a breakfast function in central Seoul. The channel carried a picture showing the bleeding ambassador holding his right hand to his right cheek, with his left hand smeared with blood. Lippert, who was appointed last year to the post, was formerly the U.S. Assistant Secretary Defense for Asian affairs. Lippert was taken to hospital but his injuries were reportedly not life-threatening.