As the president awaits an impeachment trial, the country’s interim leader may, too, be ousted. The currency has plunged as the crisis has deepened.

South Korea’s parliament is set to vote Friday on impeaching Acting President Han Duck-soo, potentially deepening a political crisis that has rattled financial markets and disrupted diplomacy efforts.

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.