South Korean authorities have granted a request to extend a warrant to detain the country’s suspended President Yoon Suk Yeol for questioning over his surprise declaration of martial law last month.

President Yoon Suk Yeol of South Korea may face arrest on insurrection charges. An investigator is determined to break the security blockade around the presidential compound to arrest him. Yoon is under criminal investigation for a martial law bid and is facing a separate impeachment trial.

Hundreds of South Koreans rallied overnight into Sunday near the residence of impeached President Yoon Suk Yeol, calling for his ouster and arrest.