Acting President Choi Sang-mok reaffirmed his neutrality on Tuesday, resisting political pressure from the Democratic Party (DP) as it moves to prosecute him over the failure to arrest impeached President Yoon Suk Yeol.

Finance Minister Choi Sang-mok became on Friday South Korea's second acting president in two weeks, as lawmakers voted to impeach the current acting leader, Prime Minister Han Duck-soo, fuelling political uncertainty in Asia's fourth-largest economy.

South Korean investigators urged the acting president to enforce an arrest warrant for impeached President Yoon Suk Yeol, after a six-hour standoff where security forces blocked the arrest. The warrant relates to Yoon's recent martial law declaration.