South Korea’s main opposition party has submitted a motion to impeach the country’s acting leader over his reluctance to fill three Constitutional Court vacancies ahead of the court’s review of rebellion charges against impeached President Yoon Suk Yeol stemming from his short-lived martial law decree on Dec.

The prime minister is set to assume presidential powers on an interim basis. The constitutional court will now review the vote, which could take months.

South Korean President Yoon Suk Yeol was impeached Saturday over his short-lived martial law decree, with twelve lawmakers from his own party joining the opposition to pass the motion in the National Assembly.

South Korea’s President Yoon Suk Yeol again declined to appear for questioning by investigators over his martial law declaration as the embattled leader seeks to first defend himself at an impeachment trial.

South Korean President Yoon Suk Yeol failed to appear before law enforcement authorities for questioning on Wednesday - the second time he has ignored a summons over his attempt to impose martial law.