United States officials are probing a secret Facebook group where border patrol members allegedly posted racist and sexist jokes about migrants.
ProPublica reported that the private group had about 9,500 members, including former and current border patrol agents.
ProPublica said that some posts mocked migrant deaths, while others targeted Latino members of Congress.
The Border Patrol chief has called the posts "completely inappropriate".
"Any employees found to have violated our standards of conduct will be held accountable," Carla Provost said.
The group was called "I'm 10-15", ProPublica said - 10-15 being Border Patrol code for "aliens in custody".
According to ProPublica, members of the group mocked Latino members of Congress who visited migrant detention centres in Texas on Monday.
Democrats Alexandria Ocasio-Cortez and Veronica Escobar were among those said to be targeted, with members calling them "hoes" and "scum buckets".