00 migrant children have been returned to a Texas border station just a day after being moved out, a US border official has confirmed.
Some 250 migrant children were transferred from the overcrowded station following a scathing report on its conditions given by judge said the children were severely neglected.
Amid the controversy over detained migrant children, officially said he was stepping down.
A Customs and Border Protection (CBP) official confirmed to the BBC on Tuesday that about 100 migrant children were returned to the facility.
The agency also confirmed that its acting commissioner, John Sanders, would be leaving his role on July 5.
Mr. Sanders announced his resignation in an email to CBP staff, obtained by US media.
"Although I will leave it to you determine whether I was successful, I can say that helping support the amazing men and women of CBP has been the most fulfilling and satisfying opportunity of my career," he wrote.
The New York Times reported the children were transported back to the Texas border station after it had made changes to its overcrowding. They had been held at the facility for weeks.
It comes as the number of migrants apprehended at the border surged in May to the highest level since 2006.
What were the conditions like?
One of the lawyers who visited the Clint facility in Texas told the BBC that children were "locked up in horrific cells where there is an open toilet in the middle of the room" where they ate and slept.
"There was nobody taking care of these children … they were not being bathed on a regular base, "Prof Warren Binford of Williamette University in Oregon said.
" Several hundred of the children were kept in a warehouse that was recently erected on the facility grounds. "Media playback is unsupported on your device  Media caption Justice department says toothbrush and soap not required for migrants
"The cells are overcrowded … there is a lice infestation there, there is an influenza outbreak. Children are being locked up in isolation with no adult supervision, who a Reora, "" They were wearing the same dirty clothing they crossed the border with.
19659007] "It is degrading and inhumane and shouldn't be happening in America."
As stories of substandard conditions in facilities have continued to emerge, some volunteers have tried to donate supplies – only to be turned away by border officials.
One group customs the Texas Tribune they spent $ 340 (£ 267) on nappies, wet wipes, soaps and toys for the Clint facility, but were ignored by all agents on duty.
Another local resident who tried to visit the Clint station told the tribune: "Knowing what's happening in your community and that can't give these kids supplies to clean or clothe themselves – it's heartbreaking."
Texas Democratic state congressman Terry Canales later tweeted that Border Patrol also told his office "they do now t accept donations ".
What did the authorities say?
In a statement, the border authority acknowledged that the Clint facility was not suited to the task.
" US Customs and Border Protection delivered our limited resources to