Shocking images of horse-mounted officers corralling Haitian migrants along the US-Mexico border are evoking dark comparisons to US slavery and the country's historical mistreatment of black people.

Some 13,000 mainly Haitian migrants have gathered in a makeshift camp under a bridge connecting Del Rio to Mexico ... border to get food for their families, and finding themselves blocked by the ...

In Del Rio, U.S. Border Patrol agents on horseback tried to deter Haitian migrants from returning to the U.S. after they had crossed the Rio Grande into Mexico for food and water on Sunday.