South Korea's new liberal president, Lee Jae Myung, said Friday that he will seek to restore a 2018 military agreement with North Korea aimed at reducing border tensions and urged Pyongyang to respond to Seoul's efforts to rebuild trust and revive dialogue.

South Korean President Lee Jae Myung vowed on Friday to "respect" North Korea's political system and build "military trust", a day after Pyongyang said it had no interest in improving relations with Seoul.

South Korean President Lee Jae Myung pledged to "respect" North Korea's political system and said Seoul would not seek unilateral reunification in a speech to mark Liberation Day.