The court has up to six months to decide whether to remove Yoon Suk Yeol from office or to reinstate him as president after his impeachment over an attempt to declare martial law.

Both indexes had rebounded strongly last week after initially falling after the martial law flip-flop and failed first impeachment vote.

South Korean President Yoon Suk Yeol defended his martial law decree in fiery comments made ahead of a second impeachment attempt and growing investigations into whether his short-lived power grab amounted to a rebellion.