Though the U.S. is known to use drones to patrol the border, this is thought to be the first time a Mexican drone has been reported operating at the border…

Officials at the Mexican consul’s office in El Paso did not call back to provide details about what kind of operation the drone was a part of, how long drones have been in use or which government agency controlled it…

Perez said Reyes’ staff was certain that drones were not part of the equipment earmarked for Mexico under the Merida Initiative.