As the nation’s president awaits an impeachment trial over an ill-fated martial law bid, its prime minister and interim leader may face an ousting of his own.

South Korea's acting president faces an impeachment vote on Friday, intensifying a political crisis as the Constitutional Court meets for its first hearing on suspended President Yoon Suk Yeol's short-lived martial law declared on Dec.

South Korea's opposition said Thursday it filed an impeachment motion against acting president Han Duck-soo, in an escalating row over the composition of the Constitutional Court which would decide whether to remove his predecessor from office.