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Cambodian police arrest 3 suspects for beating of 2 Cambodian opposition lawmakers

  • Chay Sarith, second left, and Mao Hoeun, second right in light blue shirt, suspected attackers who are accused of beating two opposition lawmakers along with another  man, are escorted by police officers at Phnom Penh Municipal Court in Phnom Penh, Cambodia, Wednesday, Nov. 4, 2015. Three suspects of the assault outside of the National Assembly last week made confessions on Tuesday, according to a government statement released late Tuesday. (AP Photo/Heng Sinith)

    Chay Sarith, second left, and Mao Hoeun, second right in light blue shirt, suspected attackers who are accused of beating two opposition lawmakers along with another man, are escorted by police officers at Phnom Penh Municipal Court in Phnom Penh, Cambodia, Wednesday, Nov. 4, 2015. Three suspects of the assault outside of the National Assembly last week made confessions on Tuesday, according to a government statement released late Tuesday. (AP Photo/Heng Sinith)  (The Associated Press)

  • Soth Vanny, center, a suspected attacker who is accused of beating two opposition lawmakers along with two other men, is escorted by police officers at Phnom Penh Municipal Court in Phnom Penh, Cambodia, Wednesday, Nov. 4, 2015. Three suspects of the assault outside of the National Assembly last week made confessions on Tuesday, according to a government statement released late Tuesday. (AP Photo/Heng Sinith)

    Soth Vanny, center, a suspected attacker who is accused of beating two opposition lawmakers along with two other men, is escorted by police officers at Phnom Penh Municipal Court in Phnom Penh, Cambodia, Wednesday, Nov. 4, 2015. Three suspects of the assault outside of the National Assembly last week made confessions on Tuesday, according to a government statement released late Tuesday. (AP Photo/Heng Sinith)  (The Associated Press)

  • Chay Sarith, center, a suspected attacker who is accused of beating two opposition lawmakers along with two others, is escorted by police officers at Phnom Penh Municipal Court in Phnom Penh, Cambodia, Wednesday, Nov. 4, 2015. Three suspects of the assault outside of the National Assembly last week made confessions on Tuesday, according to a government statement released late Tuesday. (AP Photo/Heng Sinith)

    Chay Sarith, center, a suspected attacker who is accused of beating two opposition lawmakers along with two others, is escorted by police officers at Phnom Penh Municipal Court in Phnom Penh, Cambodia, Wednesday, Nov. 4, 2015. Three suspects of the assault outside of the National Assembly last week made confessions on Tuesday, according to a government statement released late Tuesday. (AP Photo/Heng Sinith)  (The Associated Press)

Cambodian police have arrested three men suspected of beating up two opposition lawmakers during an assault outside of the National Assembly last week.

The Interior Ministry said the men turned themselves in to police Tuesday and confessed to the attack that occurred at a pro-government protest outside the assembly on Oct. 26.

In a statement, the ministry gave few details about the men who are believed to be supporters of Prime Minister Hun Sen's ruling party.

International human rights groups have demanded an independent investigation into the beatings of the opposition lawmakers, Nhoy Chamreoun and Kong Sakphea. The lawmakers were pulled from separate cars and beaten after leaving a session of the assembly. One was knocked temporarily unconscious and other was seen with a bloodied nose.