South Korea’s anti-graft agency will seek to extend an arrest warrant for President Yoon Suk Yeol, as pressure mounted on law enforcement to resolve the country’s escalating political crisis.

Thousands of South Korean citizens were gathering on Sunday near impeached President Yoon Suk Yeol’s residence a day before an arrest warrant for him expires.

South Korean investigators trying to arrest suspended President Yoon Suk Yeol have less than 24 hours before their warrant expires Monday, with the embattled leader holed out in his residence surrounded by loyal security forces.