Yoon Suk Yeol, South Korea’s since-impeached president, had been planning for months to impose martial law and target political opponents, according to accounts.

South Korea's suspended President Yoon Suk Yeol did not respond on Wednesday to a second summons by anti-corruption authorities who, along with prosecutors, are investigating his short-lived martial law decree issued early this month.

South Korea's acting President Han Duck-soo has been impeached by the opposition party controlling the National Assembly. This comes weeks after President Yoon Suk Yeol's imposed martial law, leading to his own impeachment.