Advocacy groups claim abuse, neglect at migrant detention centers for minors

A U.S. government holding facility near Mexico.

It's just one of the centers holding nearly 1,000 undocumented, unaccompanied minors.

The children are among 47,000 young migrants who entered the U.S. illegally and alone since just October.

The Department of Health and Human Services shot the video this month.

The living conditions seen here are a world away from THIS…

File photos of a similar facility in South Texas, released by Texas Congressman Henry Cuellar on Thursday.

They show cramped and dank conditions the migrants, mostly children, have to endure.

Migrant rights attorney Erika Pinheiro:

(SOUNDBITE) (English) ERIKA PINHEIRO, DIRECTING ATTORNEY, ESPERANZA IMMIGRANT RIGHTS PROJECT, SAYING:

"Unsanitary conditions, physical abuse, sexual abuse in some cases, verbal spats, things like that."

A coalition of advocacy groups including the ACLU say migrant minors face abuse and neglect from agents at Customs and Border Protecti