South Korean police raided the office of President Yoon Suk Yeol on Wednesday as part of an investigation into the controversial martial law declaration issued on December 3, according to Yonhap, South Korea’s state media.

The National Investigation Headquarters Emergency Martial Special Prosecution Team, under the National Police Agency, conducted a “seizure and search” operation at the President’s office early Wednesday morning, Yonhap reported.

Authorities also arrested National Police Commissioner Cho Ji Ho and Seoul Police Chief Kim Bong Sik in connection with the probe into the failed imposition of martial law.

The police action comes amid ongoing political unrest following Yoon’s brief attempt to declare a police state. The conservative president initially claimed the move was necessary to protect the nation from internal threats but revoked the declaration within hours after facing swift opposition from lawmakers and civil society.

Yoon’s controversial move has led to widespread criticism and calls for accountability. Opposition parties attempted to impeach him, but the effort fell short after lawmakers from Yoon’s People Power Party declined to support the vote, leaving him in office.

The fallout from the martial law declaration has been significant. Presidential Chief of Staff Jeong Jin Seok and several senior staff members resigned shortly after the decree was lifted. Yoon also accepted the resignation of Defense Minister Kim Yong Hyun, who has been described as the architect of the martial law plan.

As the investigation continues, the raid on the President’s office marks an unprecedented escalation, intensifying scrutiny over the events surrounding the controversial declaration. The political and legal ramifications are expected to unfold in the coming weeks.