A week after reports first surfaced that a migrant child had died after leaving an Immigrations and Customs Enforcement facility near Dilley, state officials have opened an investigation into possible abuse or neglect.

Until now, such probes — by government agencies and media alike — have been stymied by a lack of information. After reports of a child’s death emerged on social media, the child’s family has remained quiet, and its lawyers have declined to provide any identifying information about the child, including his or her name, age and specific cause of death.

ICE officials denied last week that a child had died in any of its facilities, but said they couldn’t investigate without more information. State officials and lawmakers lamented the same obstacle at a Thursday morning committee hearing, pleading with the family or their supporters to provide any further details.

The family’s pro-bono counsel, of the Washington, D.C., law firm Arnold & Porter, passed that information on to state investigators on Thursday afternoon shortly after the hearing.

The Texas Tribune thanks its sponsors. Become one.

“We have provided the information requested by the Texas Department of Family and Protective Services and are cooperating fully with them,” a spokeswoman for Arnold & Porter confirmed Thursday afternoon.

Both the Texas Department of Family and Protective Services and the Texas Health and Human Services Commission are investigating the incident, the agencies confirmed.

News of the investigation was first reported by The Dallas Morning News.

The agencies have not released any information about the child, saying only that officials have sufficient information to open an investigation. The family’s lawyers said earlier this week that the “small child” “tragically died after being detained by ICE in unsanitary conditions.”

ICE facilities are federally run, but Texas state agencies have certain powers to investigate them. DFPS can investigate any allegations of abuse or neglect of a child at the facilities, and HHSC licenses such facilities.

The Dilley facility, in South Texas, is one of two family detention centers in Texas and has the capacity to hold 2,400 people.