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Several units of police in riot gear were seen chasing protesters and several arrests were made.
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Riot police officers gather after chasing protesters in central Ankara June 10, 2013.
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A video posted online showed men in dark suits chasing protesters and punching and kicking them as Washington police struggled to intervene.
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He said the troops had been chasing protesters down Rajdumnoen Road and using tear gas, warning shots into the air and smoke bombs.
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Riot police fired tear gas and water cannon, chasing protesters armed with tree branches and sign posts in a commercial district near Lebanon's parliament.