The Trump administration is considering measures to halt a surge of Central American families and unaccompanied minors coming across the Mexican border, including a proposal to separate parents from their children, according to officials with knowledge of the plans.

These measures, described on the condition of anonymity because they have not been publicly disclosed, would also crack down on migrants living in the United States illegally who send for their children. That aspect of the effort would use data collected by the Department of Health and Human Services (HHS) to target parents for deportation after they attempt to regain custody of their children from government shelters.

The Department of Homeland Security (DHS) has previously considered some of these proposals, but there is renewed urgency within the administration to address an abrupt reversal of what had been a sharp decline in illegal immigration since Trump took office in January.