South Korea's voters cast their ballots in a snap presidential election sparked by the impeachment of Yoon Suk Yeol.

Opposition leader Lee Jae-myung is on course to be South Korea’s next president following a snap election, with official results showing him well ahead of his main rival who conceded defeat early Wednesday morning.

Kim Moon-soo's concession means Democratic Party candidate Lee Jae-myung has won the election to be South Korea's next leader. In a speech just concluded, Lee vowed to restore the country's economy and to make peace in the Korean peninsula.