Homeland Security Secretary Alejandro Mayorkas on Sept. 21 said he was "horrified" by images that appear to show US Border Patrol agents on horseback confronting Haitian refugees at the US border.
Mandatory Credit:	Drew Angerer/Getty Images

Homeland Security Secretary Alejandro Mayorkas on Sept. 21 said he was "horrified" by images that appear to show US Border Patrol agents on horseback confronting Haitian refugees at the US border.
Mandatory Credit: Drew Angerer/Getty Images

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DHS chief 'horrified' by images of US Border Patrol confronting migrants

Homeland Security Secretary Alejandro Mayorkas on Tuesday said he was "horrified" by images that appear to show US Border Patrol agents on horseback confronting Haitian refugees at the US border.