Customs and Border Protection agents take people into custody Saturday near the border with Mexico in Hidalgo, Texas.
CBP typically gives all migrants "notices to appear" before they are released or sent to Immigration and Customs Enforcement for detention. Releasing a migrant before determining a court date for an immigration hearing, which decides whether the migrant will be deported or allowed to stay in the U.S., is a divergence from Customs and Border Protection policy. Some immigrants said they were being released without knowing how they would be contacted.