MCALLEN, Texas — The clock is ticking for the Trump administration after U.S. District Judge Dana Sabraw ordered thousands of migrant children and parents who were forcibly separated at the Mexican border reunited within 30 days, sooner for youngsters under 5.

The deadline was set Tuesday night by Sabraw after President Donald Trump’s order ending his policy of separating families gave way to days of uncertainty, conflicting information and no word from the administration on when parents might see their children again.

He also issued a nationwide injunction against further family separations, unless the parent is deemed unfit or doesn’t want to be with the child, and ordered the government to provide phone contact between parents and their children within 10  days.

More than 2,000 children have been separated from their parents in recent weeks and placed in government-contracted shelters under a “zero tolerance” policy toward families caught illegally entering the U.S. Many are from drug- and violence-wracked Guatemala, Honduras and El Salvador.

Amid international outcry, Trump last week issued an executive order to stop the separation of families and said parents and children will instead be detained together.