DALLAS PD NEGOTIATING WITH SUSPECT IN PARKING GARAGE, The Blaze reports:

Dallas Police Chief David Brown said officers are in the middle of negotiations with a suspect inside a parking garage following a shooting that left four officers dead and several others injured. He said the gunman exchanged fire with police.

The suspect told officers the “end is coming,” threatened to “hurt and kill” more officers and claimed there were “bombs” planted throughout downtown Dallas.

Dallas police also said they are questioning two occupants of a Mercedes that sped off after an officer saw someone throw a camouflage bag into the back.

Brown said he still isn’t confident that all shooting suspects are in custody.

Michelle Malkin tweets a link to an NBC report that “FAA issues flight restriction over downtown Dallas mass shooting attack scene as situation develops,” and adds, “FAA flight restriction now? This is feeling less like a mass police ambush and more like a full-blown terror attack.”

UPDATE (3:24 AM EDT): Fox 4 KDFW reporting “shooting suspect involved in standoff at El Centro with DPD has shot himself.”