South Korean opposition leader Lee Jae-myung was stabbed in the neck during a press conference in the southern port city of Busan on Tuesday, Yonhap News Agency reported.
Lee was stabbed on the left side of his neck during a question-and-answer session with journalists, according to Yonhap.
The South Korean man who attacked opposition leader Lee Jae-myung on Tuesday is aged 67 and used a 18 cm (7 inch) long knife bought online, a police official told a briefing.
The attacker was apprehended at the scene and Lee received emergency treatment and was rushed to the hospital, although the severity of his injuries remains unclear, according to several other local reports.