ຕຳ​ຫຼວດ​ ຖືກ​ຍິງ ທີ່ ມ. Ferguson ລັດ Missouri

Police canvas the area as they investigate the scene where two police officers were shot, outside the Ferguson Police Department, March 12, 2015.

St. Louis Police Department Lt. Jerry Lohr walks through a crowd of protesters trying to get them to move away from the Ferguson Police Department, March 12, 2015.

Police watch from the parking lot of the Ferguson Police Department as protesters gather across the street, March 12, 2015.

St. Louis County Police Chief Jon Belmar indicates where one of the police officers was shot during protests early Thursday, during a press conference in Clayton, Mo.

Police photo collected at the scene from the St. Louis County Police Crime Scene Unit shows a police helmet where two police officers were shot just after midnight in Ferguson, Mo.

Police officers walk outside the Ferguson Police Department in Ferguson, Mo.

A K-9 unit patrols outside the Ferguson, Mo., police station after two officers were shot and wounded during Wednesday night's protest.

Police canvass the area as they investigate the scene where two police officers were shot outside the Ferguson Police Department.

A protester confronts a police officer outside the City of Ferguson Police Department and Municipal Court in Ferguson, Mo., March 11, 2015.

Police and protesters face-off outside the Ferguson Police Department, in Ferguson, March 11, 2015.