State investigating claim that DPS troopers were told to push migrants back into the Rio Grande and deny them water

State law enforcement officers stand guard as workers deploy a string of buoys to prevent migrants from swimming across the Rio Grande in Eagle Pass on July 14. A state trooper has alleged that officers deployed as part of Gov. Greg Abbott's Operation Lone Star were ordered to push migrants, including children, back into the river. (Credit: Jordan Vonderhaar for The Texas Tribune)

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A state trooper’s claims that superiors ordered officers at the border in Eagle Pass to push migrants back into the Rio Grande and deny them water has sparked a state investigation, the Texas Department of Public Safety said Tuesday.