Thousands of Cambodian survivors of the Khmer Rouge on Sunday marked 39 years since the fall of the regime that killed an estimated 1.7 million people.
Up to 40-thousand people attended an event in the capital Phnom Penh, organized by the ruling Cambodian People's Party of Prime Minister Hun Sen. The anniversary comes amid an opposition crackdown by Hun Sen's government ahead of a July general election.
The day is controversial in Cambodia: Hun Sen's party celebrates it as a day of liberation, while others mourn it as the start of a 10-year occupation by their Vietnamese neighbours.