Opposition senators say they will now boycott the second house of parliament, joining lawmakers from the National Assembly as the ruling party and opposition remain at political loggerheads.
In a statement Monday, the nine senators said they will not attend Senate sessions until the deadlock is broken.
As they have done with the boycotted Assembly, lawmakers from the ruling party say they will continue to pass laws, with or without the opposition.
The ruling Cambodian People’s Party and the opposition Cambodia National Rescue Party have been unable to close the gap on political reforms that could end the deadlock, in place since the July 2013 elections.
Neither side can agree on how the National Election Committee, which critics say is the heart of the country’s political problems, should be selected in the National Assembly—either through a two-thirds majority, which would favor the opposition; or a simple majority, which favors the ruling party.