Cambodians are set to vote in an election that will not feature the only serious challenger to the rule of Prime Minister Hun Sen, who has been in power since 1985.
Critics have called the vote a sham as the Cambodia National Rescue Party, which narrowly lost the last election, has been dissolved.
The US and EU are among those who have questioned the credibility of the vote.
But the ruling Cambodian People's Party says 19 other parties are standing.
On Friday, the Cambodian government ordered internet service providers in the country to block a number of independent news websites, including Radio Free Asia, Voice of America and Voice of Democracy.
It also singled out a post on the German version of the image-sharing site Pinterest, which had specifically referenced the Cambodia National Rescue Party.
English newspaper outlets were among other sites blocked.
As part of a large UN peacekeeping mission, Cambodia held its first multi-party elections in decades in 1993 after years of bloodshed and war. Some two million people are estimated to have died between 1975 and 1979 when the country was ruled by the radical communists of the Khmer Rouge.
Hun Sen, a former soldier in the Khmer Rouge who later opposed them, has presided over a sustained period of rapid economic growth.
He has long been accused of using the courts and security forces to crush dissent and intimidate critics, but has for years allowed some measure of political opposition…
