A chaotic scene of sickness and filth is unfolding in an overcrowded border station in Clint, Texas, where hundreds of young people who have recently crossed the border are being held, according to lawyers who visited the facility this week. Some of the children have been there for nearly a month.

Children as young as 7 and 8, many of them wearing clothes caked with snot and tears, are caring for infants they’ve just met, the lawyers said. Toddlers without diapers are relieving themselves in their pants. Teenage mothers are wearing clothes stained with breast milk.

Most of the young detainees have not been able to shower or wash their clothes since they arrived at the facility, those who visited said. They have no access to toothbrushes, toothpaste or soap.

“There is a stench,” said Elora Mukherjee, director of the Immigrants’ Rights Clinic at Columbia Law School, one of the lawyers who visited the facility. “The overwhelming majority of children have not bathed since they crossed the border.”

Conditions at Customs and Border Protection facilities along the border have been an issue of increasing concern as officials warn that the recent large influx of migrant families has driven many of the facilities well past their capacities. The border station in Clint is only one of those with problems. In May, the inspector general for the Department of Homeland Security warned of “dangerous overcrowding” among adult migrants housed at the border processing center in El Paso, with up to 900 migrants being held at a facility designed for 125. In some cases, cells designed for 35 people were holding 155 people.

“Border Patrol agents told us some of the detainees had been held in standing-room-only conditions for days or weeks,” the inspector general’s office said in its report, which noted that some detainees were observed standing on toilets in the cells “to make room and gain breathing space, thus limiting access to the toilets.”

Gov. Greg Abbott of Texas on Friday announced the deployment of 1,000 new National Guard troops to the border to help respond to the continuing arrivals, which the governor said have amounted to more than 45,000 people from 52 countries over the past three weeks.

“The crisis at our southern border is unlike anything we’ve witnessed before and has put an enormous strain on the existing resources we have in place,” Abbott said.

The number of border crossings appears to have slowed in recent weeks, possibly as a result of a crackdown by the Mexican government under pressure from President Donald Trump, but the numbers remain high compared with those in recent years. The overcrowding crisis has been unfolding invisibly, with journalists and lawyers offered little access to fenced-off border facilities.

The reports of unsafe and unsanitary conditions at Clint and elsewhere came days after government lawyers in court argued that they should not have to provide soap or toothbrushes to children under the legal settlement that gave Mukherjee and her colleagues access to the facility in Clint. The result of a lawsuit that was first settled in 1997, the settlement set the standards for the detention, treatment and release of migrant minors taken into federal immigration custody.

A member of a team of lawyers, Mukherjee has for years under the settlement been allowed to inspect government facilities where migrant children are detained. She and her colleagues traveled to Clint this week after learning that border officials had begun detaining minors who had recently crossed the border there.

She said the conditions in Clint were the worst she had seen in any facility in her 12-year career. “So many children are sick, they have the flu, and they’re not being properly treated,” she said. The Associated Press obtained a census showing that the facility on Wednesday was housing three infants, all with teen mothers, along with a 1-year-old, two 2-year-olds and a 3-year-old. It said there were dozens more children younger than 12.

Mukherjee said children were being overseen by guards for Customs and Border Protection. The agency declined to comment for this story. She and her colleagues observed the guards wearing full uniforms — including weapons — as well as facemasks to protect themselves from the unsanitary conditions.

Together, the group of six lawyers met with 60 children in Clint this week who ranged from 5 months to 17 years old. Some of the infants were children of minor parents, who were also detained. Others were separated from adult family members with whom they had crossed the border. The separated children were now alone, being cared for by other young detainees.

“The children are locked in their cells and cages nearly all day long,” Mukherjee said. “A few of the kids said they had some opportunities to go outside and play, but they said they can’t bring themselves to play because they are trying to stay alive in there.”

When the lawyers arrived, federal officials said that more than 350 children were detained at the facility. The officials did not disclose the facility’s capacity but said the population had exceeded it. By the time the lawyers left Wednesday night, border officials told them that about 200 of the children had been transferred elsewhere but did not say where they had been sent.

“That’s what’s keeping me up at night,” Mukherjee said.

Some sick children were being quarantined in the facility. The lawyers were allowed to speak to the children by phone, but their requests to meet with them in person and observe the conditions they were being held in were denied.

The children told the lawyers they were given the same meals every day — instant oats for breakfast, instant noodles for lunch, a frozen burrito for dinner, along with a few cookies and juice packets — which many said was not enough. Some told the lawyers they had been waking up in the middle of the night with hunger pangs.

“Every child is given the same thing, whether they’re 1 or 17,” Mukherjee said. “Nearly every child I spoke with said that they were hungry.”