A Michigan man, Ryan Louis Mosqueda, fired on a U.S. Border Patrol station in Texas, injuring three and dying in the return fire. His motive is unclear, but his family cited past mental health issues.

Two officers and one Border Patrol employee were injured, including one shot in the knee, a federal spokesperson told USA TODAY. The gunman died.

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