US anger as Cambodia expels opposition MPs Banned from standing for election: Cambodian opposition leader Sam Rainsy. Cambodia has accused foreign governments of interfering in its internal politics after the United States voiced strong concern at the expulsion of opposition politicians from parliament before elections next month. Foreign Minister Hor Namhong expressed his "disappointment" during a meeting with Australia's ambassador Alison Burrows on Monday at recent comments by some foreign diplomats about the polls, according to ministry spokesman Koy Kuong. All 28 members of parliament from the only two opposition parties were last week stripped of their salaries and status by a committee made up of ruling party members. The opposition MPs were accused of violating parliament's internal rules by leaving their parties to create a new political force to challenge Prime Minister Hun Sen's nearly three decades in power in July 28 elections. The United States, in a statement also released by the US embassy in Phnom Penh, said on Saturday that it was "deeply concerned" by the move, which "starkly contradicts the spirit of a healthy democratic process." Hor Namhong considered the remarks "acts of interference in Cambodia's internal affairs by foreign embassies." Hun Sen has led the country since 1985 and his government is regularly accused of suppressing political freedoms and mistreating activists. His main opponent, Sam Rainsy, is barred from running in next month's election due to convictions which he contends are politically motivated. The opposition accused the ruling party on Sunday of orchestrating a mass protest against one of its leaders who allegedly described a notorious Khmer Rouge prison as a Vietnamese invention. The opposition said his remarks were doctored.