Pro-Yoon and right-wing movements On 19 January 2025, at 03:00 Korea Standard Time (KST), supporters of the impeached president of South Korea, Yoon Suk Yeol, broke and entered through a window into the Seoul Western District Court [ko] to protest the formal arrest warrant that extended the previous detainment warrant for up to 20 days pending the prosecutors' decision on indictment.

[3] On 19 January, the Supreme Prosecutors' Office announced the formation of a special investigation team and stated that those involved would be taken into custody for questioning.

[10] On 18 January, Judge Cha Eun-kyung of the Seoul Western District Court issued a formal arrest warrant, extending Yoon's detention to up to 20 days pending the prosecutors' decision on indictment.

The warrant was issued on the grounds that Yoon posed a risk of "destroying evidence" related to the investigation into his martial law declaration.

[11] On 18 January, Judge Cha Eun-kyung held a hearing with President Yoon Suk Yeol in connection with the CIO's arrest warrant application.

The protesters engaged in violent acts, including assaults on law enforcement officers and journalists, resulting in the arrest of 40 individuals.

Chanting slogans like "President Yoon" and "Reject the warrant," they threw fire extinguishers, monitors, flowerpots, signs, and other objects within reach.

After police lines were breached, approximately 20 security personnel and staff members fled the riot to the eighth and eleventh floors and the rooftop.

[20][21] Yoon's criminal defense attorney Suk Dong-hyun said that "expressing anger is understandable, but if it escalates into excessive violence, there is a risk of becoming entangled in targeted offensives or counterstrategies by leftist groups".

[23] On 19 January, Judge Cha Eun-kyung, who had issued the formal arrest warrant for President Yoon, requested personal protection.