By Joyce Lee SEOUL (Reuters) -South Korea's leadership crisis will play out in the Constitutional Court, which will decide the fates of President Yoon Suk Yeol and Prime Minister Han Duck-soo, both impeached and suspended from power over a short-lived martial law.

South Korean Constitutional Court's Judge Lee Mi-son and Cheong Hyung-sik sit in during the first preparatory hearing of a trial on the validity of President Yoon Suk-yeol's impeachment by the National Assembly at the constitutional court of Korea on December 27, 2024 in Seoul, South Korea. [Photo/Agencies]

The move by acting President Choi Sang-mok aims to restore stability and prevent a credit rating downgrade, following the impeachment of two predecessors.