The American Civil Liberties Union (ACLU) said Sunday that the Trump administration has turned over the names of nearly 100 migrant children under 5 years old who were separated from their parents at the U.S.–Mexico border.

A spokesperson for the ACLU confirmed to CNN that the Justice Department had given them the list of names, as ordered by a federal judge on Friday. U.S. District Court Judge Dana Sabraw ruled that the administration had until late Saturday to release the list and until Tuesday to define its plans for reuniting those children with their families.

The Justice Department had requested a blanket extension on the July 10 deadline, saying it needed more time to conduct DNA testing on some of the children in order to match them with their parents.

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But the judge declined to grant that request, saying the government must comply with the deadline "unless there is an articulable reason." The judge also ordered them to release the list of names to the ACLU.

The government has until July 26 to reunite all other children separated from their parents.

A hearing will take place Monday for the judge to determine if the Trump administration can take more time to reunite some of the families.

President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE has come under fire for his “zero tolerance” immigration policy, which resulted in more than 2,000 children being detained separately from their parents after being apprehended for crossing the border illegally.

Though the president signed an executive order to halt family separations, the administration has been criticized for not working quickly enough to reunite the families.

The backlash has continued amid reports of children as young as 1 being forced to appear in immigration court, many without legal representation.