A Dallas police officer was shot and killed overnight; two others have been wounded and are in the hospital.
Officials say this started as am 'Officer in Distress' call.
"When our officers arrived they found a Dallas police officer who had been shot in his marked patrol vehicle," officials said. "Officers then exchanged gunfire with a suspect at that scene, and two officers were shot at that scene." One is in critical condition; the other is in stable condition.
The shooter then led police on a chase from Dallas to Lewisville.
"When that suspect exited that vehicle, he had a long gun. Dallas police officers fired at the suspect, and he died at that scene."
Dallas officials have not yet said what led to all of this.
"Our department is hurting. We lost one of our own. We ask for the thoughts and prayers for our city."