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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A Dallas police officer, who did not want to be identified, takes a moment as she guards an intersection in the early morning after a shooting in downtown Dallas on July 8, 2016.

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Bystanders stand near pollice baracades following the sniper shooting in Dallas on July 7, 2016.

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Police attempt to calm the crowd as someone is arrested following the sniper shooting in Dallas on July 7, 2016.

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Dallas police detain a driver after several police officers were shot in downtown Dallas on July 7, 2016. Snipers apparently shot police officers during protests and some of the officers are dead, the city's police chief said in a statement.