South Korea's presidential candidates faced off in a heated first TV debate on Sunday evening, ahead of a snap election on June 3 to choose a successor to former President Yoon Suk Yeol who was impeached over his short-lived martial law declaration in December.

South Korea’s impeached ex-President Yoon Suk Yeol today said he is leaving his conservative party before snap elections triggered by his ouster last month over a disastrous bid to impose martial law.

Kim Moon-soo, the candidate from the conservative People's Power Party in next month's presidential election, said Tuesday the party was not considering expelling impeached former President Yoon Suk Yeol.