South Korean investigators asked prosecutors to indict the country’s detained President Yoon Suk Yeol over his short-lived imposition of martial law last month, as it accused him of rebellion, abuse of power and obstruction of parliament on Thursday.

The Corruption Investigation Office for High-Ranking Officials said that Yoon staged a “riot” and sought to undermine the constitution when he declared martial law on December 3 and sent troops and police officers to seal the National Assembly.