Former South Korean Defense Minister Kim Yong-hyun has attempted to end his own life while in custody, the head of the country’s correctional service said Wednesday, as a political crisis from the President’s brief declaration of martial law continues to spiral.

South Korea’s previous defense minister was stopped from attempting suicide while in detention over last week’s martial law declaration, officials said Wednesday, as President Yoon Suk Yeol’s office resisted a police attempt to search the compound.