Dallas police say three suspects are in custody and a fourth is dead hours after snipers killed five police officers during a coordinated attack on a peaceful demonstration. At least six officers were wounded in the ambush which occurred Thursday evening during a protest against the killing of two black men by white police officers in Minnesota and Louisiana. police shooting.
ມືປືນ ສັງຫານ ຕຳຫຼວດ 5 ຄົນ ຢູ່ Dallas

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Dallas Police Chief David Brown leaves the Baylor University Medical Center after a visit on July 8, 2016, in Dallas. Snipers opened fire on police officers in the heart of Dallas on Thursday night, killing some of the officers.

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People rally in Dallas, Texas, on Thursday, July 7, 2016 to protest the deaths of Alton Sterling and Philando Castile.

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A man lays on the ground after yelling "Don't shoot me" at police during a rally in Dallas, Texas, on Thursday, July 7, 2016 to protest the deaths of Alton Sterling and Philando Castile.

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A man holds a bat reading "Black Power" during a protest in Dallas, Texas, on July 7, 2016 to protest the deaths of Alton Sterling and Philando Castile.