South Korean opposition party leader Lee Jae-myung was stabbed in the neck on Tuesday while talking to reporters in the port city of Busan.
Lee was walking in a crowd of journalists after visiting the site of a new airport when a man in front of him lunged and struck him in the neck, footage on South Korean television channels showed.
The 59-year-old was seen collapsing to the ground as people rushed to aid him. One man was seen pressing a handkerchief on Lee's neck.