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

McALLEN, Texas (AP) — A 27-year-old man was killed Monday after opening fire at a U.S. Border Patrol facility in McAllen, Texas, authorities said. Federal agents returned fire at the man, who had an assault rifle and was carrying a utility vest, McAllen Police Chief Victor Rodriguez told reporters Monday morning.

Ryan Louis Mosqueda, 27, was killed after opening fire on federal and local law enforcement, officials said. Investigators have not determined a motive.