The images surfaced this week amid a chaotic situation at various parts of the U.S.-Mexico border, especially in Texas ... where scores of people have been wading across the Rio Grande to the U.S. side -- including thousands of Haitians, many of whom have set up camp under a bridge in the town of Del Rio, which has grown exponentially in recent days.

As a way to deter people ... some border agents on horseback were photographed and taped swinging around what seems to be either reins or lariats attached to the saddle equipment on their steeds. The photos and video here don't appear to show the agents actually make contact with any of the Haitians trying to cross, but still ... it looks bad.

The sheer optics of this -- white border agents apparently trying or threatening to whip predominantly Black Haitian migrants -- has caught the Biden administration's attention.

POTUS's Press Secretary, Jen Psaki, was asked about it repeatedly during Monday's press conference ... and said the staff had seen the footage, but needed more information to make an assessment on what was actually happening before weighing in further.

Still, Psaki did acknowledge that based on what they'd seen thus far ... it didn't seem like anything that'd be appropriate in any scenario, but made a point to say they were trying to gather the full context and more details -- despite reporters pushing back and getting testy.