The Department of Homeland Security on Monday rebuffed allegations that U.S. Immigration and Customs Enforcement agents handcuffed children as they targeted illegal immigrants for deportation.

Last week, migrant advocates in San Antonio, Texas reported that during an operation focused on detaining illegal immigrants, ICE used zip ties to handcuff at least one minor. The Immigrant Legal Resource Center shared a video of ICE agents taking a family into custody at the San Antonio Immigration Court. In the video, a young male appeared to be detained through the use of zip ties. DHS said the subject in the video was 18 years old.