A man was killed after an exchange of gunfire with U.S. Customs and Border Protection agents in southern Texas, according to the Department of Homeland Security.

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

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