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.

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,