South Korea’s conservative President Yoon Suk Yeol, who was impeached, has been released from prison 

His release on Saturday comes one day after a Seoul court canceled his arrest on procedural grounds so he could stand trial for rebellion, according to the Associated Press.

Yoon is still under investigation as a result of his declaration of martial law.

Yoon waved and bowed to his supporters who were waving South Korean and U.S. flags as he left the Seoul Detention Center in Uiwang, according to AFPTV video footage.