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A helicopter carrying three National Guard soldiers and a Border Patrol agent crashed Friday near the U.S.-Mexico border in Texas, killing at least three on board. A fourth person is in critical condition.
The accident took place in La Grulla, a border town that sits near the Rio Grande in Starr County.
Law enforcement sources told Fox that the three National Guard soldiers were working on federal orders on behalf of the Department of Homeland Security.
In January, a Texas Department of Public Safety helicopter on a patrol mission crashed along the state's border with Mexico lost power and crashed. The co-pilot suffered a minor hand injury and the helicopter was significantly damaged.