South Korean President Yoon Suk Yeol's term in office has been dogged by personal scandals, an unyielding opposition and rifts within his own party, and a rapid fall from grace over his short-lived declaration of martial law last month.

Acting President Choi Sang-mok was grilled Thursday at a special parliamentary committee investigating President Yoon Suk Yeol's martial law bid, with opposition lawmakers questioning him about a memo Yoon allegedly gave Choi ordering a budget for an emergency legislative body.