The recent rise is alarming migrant advocates, who say the facilities are not appropriate for young children, even though levels are still below those seen in mid-March when CBP held more than 5,700 unaccompanied kids at border stations.
“Everyone is worrying about the numbers and how it is going to be for the kids moving through the system,” said Jennifer Podkul, from the nonprofit Kids in Need of Defense, which provides legal representation for migrant children.