South Korean investigators renewed Saturday their call for the acting president to enforce an arrest warrant for impeached President Yoon Suk Yeol following a tense standoff at Yoon's compound.

On Friday, Yoon's presidential security service, supported by soldiers, obstructed prosecutors from executing the warrant during a six-hour confrontation. The warrant was issued in connection with Yoon's brief declaration of martial law on December 3, which marked the first time in South Korean history that an arrest warrant was issued for a sitting president.

The Corruption Investigation Office for High-Ranking Officials (CIO), which is leading the investigation, announced on Saturday that it had again urged Acting President Choi Sang-mok, who also serves as finance minister, to instruct the presidential security service to comply with the warrant.

When asked for a response, a finance ministry spokesperson declined to comment.

Additionally, the police have summoned Park Chong-jun, the chief of the presidential security service, for questioning on Tuesday, according to Yonhap news agency.

Warrant to shortly expire

A CIO official told reporters at a briefing on Tuesday that the current arrest warrant for Yoon is valid until January 6, adding that Yoon could be held at a police station or the Seoul detention center.

"The reason for the warrant is that there is a concern that the individual may refuse to comply with summons without justifiable reasons, and there is sufficient probable cause to suspect the commission of a crime," the official explained.