This photo shows the external view of the Yongsan Presidential Office in Seoul, Dec. 6, 2024. Yonhap

Police launched another attempt Monday to search the Presidential Security Service (PSS) and a presidential safe house as part of their investigation into President Yoon Suk Yeol's failed martial law bid.

Investigators arrived at the presidential office in the central Seoul district of Yongsan, where the PSS is located, and the safe house in the Samcheong-dong neighborhood to try to secure surveillance camera footage.

The safe house is where Yoon met with the national and Seoul police chiefs to discuss his martial law plans three hours before he announced the decree on Dec. 3.

By securing surveillance camera footage from the safe house, the server for which is kept at the PSS office, police plan to identify the people who entered the premises before and after Yoon's declaration of martial law and what instructions they received.

The raid comes a day after Yoon was placed under formal arrest on charges of leading an insurrection and abuse of power and as senior PSS officials have either resigned or are under investigation in connection with the case.

Previous attempts to search the locations largely failed due to resistance from the PSS. (Yonhap)