Former South Korean President Yoon Suk Yeol was acquitted on September 11, 2026, in a case related to the drowning death of Cpl. Chae Su-geun, a marine who died during a search-and-rescue operation for flood victims in 2023. The court ruled that it was unclear whether Yoon's appointment of former Defense Minister Lee Jong-Sup as ambassador to Australia was intended to disrupt the investigation into Chae's death. Yoon claimed he appointed Lee to promote military cooperation with Canberra, and his lawyers welcomed the acquittal while urging prosecutors not to appeal. Yoon, along with several other defendants including his former Justice Minister and Presidential Security Director, were acquitted of charges that they colluded to help Lee evade investigation.