The opposition coalition, which holds a majority in parliament, needs eight members of the ruling party to impeach the president.

On Saturday, the initial impeachment effort failed after Yoon's People Power Party boycotted the session, preventing quorum to hold the vote. To impeach Yoon, at least 200 of the parliament's 300 lawmakers must vote in support of the move. The ruling party holds 108 seats in the legislative body.

Most lawmakers in President Yoon's ruling party boycotted a vote Saturday to deny a two-thirds majority needed to suspend his presidential powers. With growing protests, polls show most South Koreans support his removal.

South Korean President Yoon Suk Yeol faces the greatest challenge of his brief but chequered political career, despite surviving a bruising impeachment challenge, as members of his own party called for him to resign for imposing martial law.

South Korean lawmakers are set to vote later Saturday on impeaching President Yoon Suk Yeol over his short-lived attempt to impose martial law, as protests grew nationwide calling for his removal

South Korean President Yoon Suk Yeol managed to avoid impeachment over the weekend by just a handful of votes. But pressure for him to step down is only intensifying.