Authorities say a 27-year-old man was killed after opening fire at a U.S. Border Patrol facility in McAllen, Texas.

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

A shooter opened fire at a Border Patrol facility in McAllen, Texas, on Monday morning, a Department of Homeland Security spokesperson said. Border Patrol agents and local police helped "neutralize" the shooter,