Protesters marched through the streets of the capital, Phnom Penh, on Sunday and clashed with police who were armed with tear gas, smoke grenades and water cannons.
Protests in Cambodia

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Volunteers who will be sent to Africa in the forthcoming days are taught how to work with patients infected with the Ebola virus during a training session at AP-HP Hospital Henri Mondor in Creteil, a suburb of Paris, Oct. 22, 2014.

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A protester supporting the opposition Cambodia National Rescue Party throws a stone as another tries to remove barbed wire barricades during clashes with police in Phnom Penh, Sept. 15, 2013.

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Police officers use water cannons during clashes with protesters near the Royal Palace in Phnom Penh, Sept. 15, 2013.

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An injured protester of Cambodia's opposition party is carried to a hospital near the Royal Palace in Phnom Penh, Sept. 15, 2013.

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A protester supporting the opposition Cambodia National Rescue Party reacts as police fire tear gas during clashes near the Royal Palace in Phnom Penh. Sept. 15, 2013.

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A supporter of Cambodia's opposition party avoids a smoke grenade near the Royal Palace in Phnom Penh, Sept. 15, 2013