‘The Ringleader’

South Korean prosecutors on Sunday formally indicted impeached President Yoon Suk Yeol on charges of insurrection in connection with his unsuccessful attempt to implement martial law last month, marking the latest chapter in a political crisis that has shaken the country, Agence France-Presse reported.

Yoon declared martial law on Dec. 3 – the first use of that power in more than four decades – and sent troops and police to parliament to keep lawmakers from convening. They ultimately bypassed security and voted unanimously to nullify the order a few hours later.

Prosecutors alleged that Yoon’s actions constituted rebellion aimed at undermining the constitution. If convicted, the president could face a life sentence or potentially the death penalty.

Sunday’s indictment follows his arrest earlier this month, marking the first time a South Korean president has been jailed. He is currently in custody at the Seoul Detention Center pending trial, which must begin within six months.

After declaring martial law, Yoon cited alleged election fraud and legislative obstruction as justification, with the president calling the legislature a “den of criminals” and labeling opponents as “anti-state forces.”

Yoon, however, has maintained that his actions were lawful and meant to preserve order. His lawyers vowed to fight the charges, accusing authorities of political bias.

Opposition leaders welcomed the indictment, with lawmaker Han Min-soo calling for accountability not only for those who implemented the plan but also for those who “instigated it by spreading misinformation.”

Analysts, meanwhile, warned of further political polarization, with rival protests intensifying in recent weeks, the Associated Press added.