Jeong Gye-son and Jo Han-chang — newly appointed by acting President Choi Sang-mok officially took office Thursday, kicking off an eight-member bench.

The presidential office voiced regret Tuesday after acting President Choi Sang-mok appointed two justices to the Constitutional Court, saying he has gone beyond his authority as the interim leader by going ahead with the appointments.

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.

A South Korean court issued warrants to detain impeached President Yoon Suk Yeol and search his office and residence over his short-lived declaration of martial law.

A South Korean court gave authorities approval on Tuesday to detain impeached President Yoon Suk Yeol in a criminal investigation into his martial law decree, marking the first time that a sitting president of the country has faced arrest.