Kampot authorities detained three residents and one political activist Thursday over a land dispute with a local company, officials said.
Human Rights Party activist Chuon Choch was arrested with Sam Henag, Eb Chhe and Bin Sopheap, following what police described as destruction of property and assault.
All four live in Banthey Meas district, where residents say they have had land taken by a local company.
A HRP official called the arrests an abuse of political rights, and one villager said the men were handcuffed and taken by police without any questions asked.
The rights group Licadho said Thursday that two men were released late Thursday.