UPDATE: Police aren't sure they have everyone who was involved

DALLAS (AP) — Police Chief David Brown says authorities are still not certain that they have identified everyone involved in an attack on a downtown protest march that killed five police officers.

Brown said Friday that investigators have not ruled out that others may have been involved in the attacks that left a total of 12 officers and two civilians shot.

Dallas Mayor Mike Rawlings says an overnight standoff with one suspect in a parking garage ended when police detonated an explosive about four hours after the attack began. Authorities say the explosive was attached to a robot to protect officers.

Brown would not reveal any details about other potential suspects that have been detained by police and interviewed.

POLICE SHOOTINGS-PROTEST-WOUNDED

NEW: Wounded are expected to recover

DALLAS (AP) — Mayor Mike Rawlings says a total of 12 police officers and two civilians were shot during a protest march in downtown Dallas.

Rawlings said Friday that he does not believe that any of the wounded victims have life-threatening injuries.

He says five officers were killed and seven more were injured when snipers opened fire during protests over two recent fatal police shootings of black men.

POLICE SHOOTINGS-PROTEST-WOUNDED OFFICER

NEW: Mayor describes injuries to officer

DALLAS (AP) — Mayor Mike Rawlings says a bullet went straight through the leg of one police officer as snipers fatally shot three members of his squad during a protest in downtown Dallas.

Rawlings, who says he spoke to the wounded officer, said Friday that the officer expressed sorrow at his loss and that he felt "people don't understand the danger of dealing with a protest."

The mayor says it's important to uphold the right of people to protest, but that more care needs to be taken to ensure the safety of police officers at such events.

Snipers shot and killed five police officers and wounded seven more at the demonstration Thursday evening to protest the police killing of black men in Baton Rouge, Louisiana, and St. Paul, Minnesota. Two civilians were also injured.

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