The Trump administration has been sending babies and toddlers to three “tender age” shelters located across South Texas after the children have been separated from their parents.

The Associated Press has spoken to lawyers and medical providers who have visited the shelters in the Rio Grande Valley, where they described rooms of crying children younger than 5 years old.

“The thought that they are going to be putting such little kids in an institutional setting? I mean it is hard for me to even wrap my mind around it,” said Kay Bellor, vice president for programs at Lutheran Immigration and Refugee Service.

“Toddlers are being detained.”

A fourth shelter for young children is planned to open in Houston.

Mayor Sylvester Turner decried the new immigration policy and is asking the Trump administration to reconsider.

“I don’t want our city to participate in this policy,” Turner said. “We draw the line and for me, the line is with these children.”

The center would house up to 240 children in a warehouse previously used for people displaced by Hurricane Harvey.

The influx of children have entered the custody of the Department of Health and Human Services due to President Trump’s zero- tolerance policy on immigration.

More than 2,300 children have been taken from their parents at the US-Mexico border since the policy went into effect in May.