Texas ပြည်နယ် ဆန္ဒပြပွဲပစ်ခတ်မှု (သတင်းမှတ်တမ်းဓာတ်ပုံများ)

A Dallas police vehicle follows behind an ambulance carrying a patient to the emergency department at Baylor University Medical Center, as police and others stand near the emergency entrance early Friday, July 8, 2016.

Dallas police gather as a crowd forms in downtown Dallas, early Friday, July 8, 2016.

A Dallas police officer covers his face as he stands with others outside the emergency room at Baylor University Medical Center, July 8, 2016, in Dallas.

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.

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

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

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.

Law enforcement sweeps the area for explosives after a shooting in downtown Dallas on July 8, 2016. Snipers opened fire on police officers in the heart of Dallas on Thursday night, killing some of the officers.

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.

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

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.

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.

Protestors yell after police officers arrest a bystander following the shooting at a protest in Dallas on July 7, 2016.