PHNOM PENH, Cambodia (AP) — The leader of a recently formed Cambodian opposition party has been charged with inciting social disorder, his lawyer said Saturday, in the third major legal action this month targeting critics of the government of Prime Minister Hun Manet,

Sun Chanthy of the Nation Power Party, established late last year, was formally charged Friday by the Phnom Penh Municipal Court and sent to pre-trial detention in the northwestern province of Pursat, according to Choung Chou Ngy. He said his client could be sentenced to six months to two years in prison if convicted, and that on Monday he will seek his release on bail.

Cambodia’s government has long been accused of using the judicial system to persecute critics and political opponents. The government insists it promotes the rule of law under an electoral democracy, but political parties seen as mounting strong challenges to the ruling Cambodian People’s Party have been dissolved by the courts or had their leaders jailed or harassed.