Prime Minister Han Duck-soo, who was impeached on Friday as South Korea's acting president, is a career technocrat whose wide-ranging experience and reputation for rationality failed to shield him from growing political turmoil.

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 voted to impeach prime minister and acting President Han Duck-soo Friday, less than two weeks after parliament stripped President Yoon Suk Yeol of his powers over his short-lived martial law order that plunged the country into political chaos.