Cambodia's Phnom Penh appeals court upheld Kem Sokha's 27-year sentence for treason on 30 April 2026; the UN human rights office said the convictions are clearly inconsistent with international human rights law.

A UN human rights office spokesperson said on 1 May 2026 that the Phnom Penh appeals court the previous day upheld the conviction and 27-year sentence of former opposition leader Kem Sokha for treason, espionage and conspiracy, connected to a speech he gave in Australia in 2013. A separate first-instance court on 29 April imposed sentences of 18 months suspended to two years on 33 others, over 2024 public comments about the Cambodia-Laos-Vietnam Development Triangle Area project.