U.S. to probe incidents involving border agents on horseback dispersing Haitians

The U.S. Department of Homeland Security on Monday pledged to "swiftly" conduct an investigation into what it called "extremely troubling" footage of Border Patrol agents on horseback aggressively dispersing Haitian migrants, saying the internal probe could lead to disciplinary actions.

"The Department of Homeland Security does not tolerate the abuse of migrants in our custody and we take these allegations very seriously," a department spokesperson said. "U.S. Customs and Border Protection's Office of Professional Responsibility is investigating the matter and has alerted the DHS Office of Inspector General." 

Homeland Secretary Alejandro Mayorkas also directed department personnel to deploy to Del Rio, Texas to ensure that border officials there carry out their duties "consistent with applicable policies and training and the Department's values."