SEOUL (Reuters) -South Korean investigators again asked the country's acting president on Saturday to order the presidential security service to comply with an arrest warrant for impeached President Yoon Suk Yeol.

The plane crash is the first major test for South Korea’s acting president, Choi Sang-mok, who was appointed the interim leader only on Friday, as the country grapples with a political crisis at the highest levels.

South Korea's opposition-controlled National Assembly voted Friday to impeach acting President Han Duck-soo despite vehement protests by governing party lawmakers, further deepening the country's political crisis set off by President Yoon Suk Yeol's stunning imposition of martial law and ensuing impeachment.

South Korea's acting President Choi Sang-mok said on Tuesday he would immediately move to fill vacancies on the Constitutional Court in a effort to restore stability after the impeachment of two of his predecessors this month triggered political turmoil.

South Korea's opposition Democratic Party submitted an impeachment motion against embattled acting President Han Duck-soo on Thursday in the latest challenge to the country's leadership structure.

U.S. Secretary of State Antony Blinken met South Korea’s acting leader Choi Sang-mok in Seoul on Monday. Copyright 2025 The Associated Press. All Rights Reserved.

S. Korean acting president meets Blinken South Korean acting President Choi Sang-mok (R) and U.S. Secretary of State Antony Blinken shake hands during their meeting at the government complex in Seoul on Jan.