The 27-year-old shooter is dead and three officers are injured following an early morning shooting at a CBP station in McAllen, Texas

Federal agents returned fire at Ryan Louis Mosqueda, who had an assault rifle and was carrying a utility vest, McAllen Police Chief Victor Rodriguez told reporters Monday morning.

The man opened fire on the building in McAllen, Texas, on Monday. A border patrol employee and two officers were injured, federal officials said.