A Map of the Dallas Shootings

At 8:58 p.m. Thursday evening, snipers shot 12 police officers in downtown Dallas, throwing a peaceful protest against the police-shooting deaths of Philando Castile in Falcon Heights, Minnesota, and Alton Sterling in Baton Rouge, Louisiana, into extreme chaos. Of the officers hit, five—including one DART officer—have died.

The exact details of the event are still emerging. What we do know is that the shots came from elevated positions along the protest route. A witness recorded video of officers being shot at the intersection of Lamar and Main Streets.The New York Times reports that law enforcement faced more gunfire toward Elm Street. As the night went on, officers became embroiled in tense negotiations with one of the alleged shooters, who was in the second-floor garage of El Centro, a community college.

“He’s told us that the end is coming, and he’s going to hurt and kill more of us—meaning law enforcement. And there are bombs all over the place in this garage and downtown,” Dallas Police Chief David Brown said at a press conference Thursday night. That man was later killed by a “bomb robot” deployed by the police, which ended the standoff.