South Korea's anti-corruption agency on Thursday transferred to prosecutors its case against impeached President Yoon Suk Yeol, recommending his indictment for insurrection and abuse of power over his brief martial law declaration.

South Korean President Yoon Suk Yeol appeared in a Seoul court for his impeachment trial Tuesday, defending his short-lived martial law bid and denying charges that he ordered the military to drag lawmakers away.

The CIO and the prosecution agreed to jointly investigate Yoon's "insurrection" charge by questioning the impeached president for 10 respective days. The prosecution was widely expected to indict Yoon for the "insurrection" and other charges around Feb 5. Yoon rejected the CIO's repeated call to appear for questioning.