Impeached South Korean President Yoon Suk Yeol was indicted for insurrection on Sunday, an unprecedented development in weeks of political and legal crisis since his short-lived martial law attempt stunned the nation.

South Korea’s impeached president has denied that he ordered the military to drag lawmakers out of the National Assembly to prevent them from voting to reject his martial law decree last month, as he appeared for the first time before the Constitutional Court that will determine his fate.

Prosecutors indicted detained South Korean President Yoon Suk Yeol on Sunday on charges of leading an insurrection with his short-lived imposition of martial law last month.