PHOTOS: Where migrants are held in U.S. custody

An overcrowded fenced area holding families at a Border Patrol station is seen in a still image from video in McAllen, Texas, on June 10, 2019 and released as part of a report by the Department of Homeland Security's Office of Inspector General on July 2, 2019. (Photo: Office of Inspector General/DHS/Handout via Reuters)

The treatment of migrants in federal custody has come under intense scrutiny following recent reports of unsanitary conditions, overcrowding, and prolonged detention of adults and children at several U.S. Customs and Border Protection facilities near the southwest border. (Yahoo News)

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Central American migrants are seen inside an enclosure where they are being held by U.S. Customs and Border Protection (CBP), after crossing the border between Mexico and the United States illegaly and turning themselves in to request asylum, in El Paso, Texas, U.S. March 27, 2019. (Photo: Jose Luis Gonzalez/Reuters)
Central American migrants are seen inside an enclosure where they are being held by U.S. Customs and Border Protection (CBP), after crossing the border between Mexico and the United States illegaly and turning themselves in to request asylum, in El Paso, Texas, U.S. March 27, 2019. (Photo: Jose Luis Gonzalez/Reuters)
A man holds a child inside an enclosure, where they are being held by U.S. Customs and Border Protection (CBP), after crossing the border between Mexico and the United States illegally and turning themselves in to request asylum, in El Paso, Texas, U.S., March 29, 2019. (Photo: Lucas Jackson/Reuters)
A man plays gives children rocks to play with inside an enclosure, where they are being held by U.S. Customs and Border Protection (CBP), after crossing the border between Mexico and the United States illegally and turning themselves in to request asylum, in El Paso, Texas, U.S., March 29, 2019. Photo: Lucas Jackson/Reuters)
A young boy walks near other migrants lying on the ground inside an enclosure, where they are being held by U.S. Customs and Border Protection (CBP), after crossing the border between Mexico and the United States illegally and turning themselves in to request asylum, in El Paso, Texas, U.S., March 29, 2019. Photo: Lucas Jackson/Reuters)
A young girl carries a child on her back inside an enclosure, where they are being held by U.S. Customs and Border Protection (CBP), after crossing the border between Mexico and the United States illegally and turning themselves in to request asylum, in El Paso, Texas, U.S., March 29, 2019. (Photo: Lucas Jackson/Reuters)
A man and child lie on the ground inside an enclosure, where they are being held by U.S. Customs and Border Protection (CBP), after crossing the border between Mexico and the United States illegally and turning themselves in to request asylum, in El Paso, Texas, U.S., March 29, 2019. (Photo: Lucas Jackson/Reuters)
A young child looks through a fence inside an enclosure, where they are being held by U.S. Customs and Border Protection (CBP), after crossing the border between Mexico and the United States illegally and turning themselves in to request asylum, in El Paso, Texas, U.S., March 29, 2019. (Photo: Lucas Jackson/Reuters)
Migrants are seen outside the U.S. Border Patrol McAllen Station in a makeshift encampment in McAllen, Texas, U.S., May 15, 2019. (Photo: Loren Elliott/Reuters)
U.S. Customs and Border Protection (CBP) temporary facilities for housing migrants are seen in Donna, Texas, U.S., May 15, 2019. (Photo: Loren Elliott/Reuters)
Migrants are seen outside the U.S. Border Patrol McAllen Station in a makeshift encampment in McAllen, Texas, U.S., May 15, 2019. (Photo: Loren Elliott/Reuters)
Migrants and Border Patrol agents are seen outside the U.S. Border Patrol McAllen Station in a makeshift encampment in McAllen, Texas, U.S., May 16, 2019. (Photo: Loren Elliott/Reuters)
Migrants are seen outside the U.S. Border Patrol McAllen Station in a makeshift encampment in McAllen, Texas, U.S., May 15, 2019. (Photo: Loren Elliott/Reuters)
Men are crowded in a room at a Border Patrol station in a still image from video in McAllen, Texas, U.S. on June 10, 2019 and released as part of a report by the Department of Homeland Security's Office of Inspector General on July 2, 2019. Picture pixelated at source. (Photo: Office of Inspector General/DHS/Handout via Reuters)
A bus used to transport migrants drives toward a makeshift encampment outside the U.S. Border Patrol McAllen Station in McAllen, Texas, U.S., May 16, 2019. (Photo: Loren Elliott/Reuters)
A makeshift encampment used as a holding area for migrants is seen outside the U.S. Border Patrol McAllen Station in McAllen, Texas, U.S., May 16, 2019. (Photo: Loren Elliott/Reuters)
Some of a group of 51 adult females press against the window of a cell built to hold 40 male juveniles at Fort Brown Border Patrol station in a still image from video in Brownsville, Texas, U.S. on June 12, 2019 and released as part of a report by the Department of Homeland Security's Office of Inspector General on July 2, 2019. Picture pixelated at source. (Photo: Office of Inspector General/DHS/Handout via Reuters)
A Border Patrol agent waves to two passing men outside the U.S. Border Patrol McAllen Station by a makeshift encampment used to hold migrants in McAllen, Texas, U.S., May 16, 2019. (Photo: Loren Elliott/Reuters)
The U.S. Customs and Border Protection's Border Patrol station in Clint, Texas, U.S., June 25, 2019. REUTERS/Julio-Cesar Chavez - RC15F8EFDA90
An overcrowded area holding families at a Border Patrol Centralized Processing Center is seen in a still image from video in McAllen, Texas, U.S. on June 11, 2019 and released as part of a report by the Department of Homeland Security's Office of Inspector General on July 2, 2019. Picture pixelated at source. (Photo: Office of Inspector General/DHS/Handout via Reuters)
A general view shows a temporary facility for processing migrants requesting asylum, at the U.S. Border Patrol headquarters in El Paso, Texas, U.S. April 29, 2019. (Photo: Jose Luis Gonzalez/Reuters)
An overcrowded fenced area holding families at a Border Patrol Centralized Processing Center is seen in a still image from video in McAllen, Texas, U.S. on June 11, 2019 and released as part of a report by the Department of Homeland Security's Office of Inspector General on July 2, 2019. Picture pixelated at source. (Photo: Office of Inspector General/DHS/Handout via Reuters)
An overcrowded area holding families at a Border Patrol station is seen in a still image from video in Weslaco, Texas, U.S. on June 11, 2019 and released as part of a report by the Department of Homeland Security's Office of Inspector General on July 2, 2019. Picture pixelated at source. (Photo: Office of Inspector General/DHS/Handout via Reuters)
A view of the U.S. Customs and Border Protection (CBP) temporary holding facilities in El Paso, Texas, U.S., May 2, 2019. (Photo: Jose Luis Gonzalez/Reuters)
An interior area for housing migrants is seen during a tour of U.S. Customs and Border Protection (CBP) temporary facilities in Donna, Texas, U.S. May 2, 2019. (Photo: Loren Elliott/Reuters)
Workers are seen inside a temporary facility for processing migrants requesting asylum, at the U.S. Border Patrol headquarters in El Paso, Texas, U.S. April 29, 2019. (Photo: Jose Luis Gonzalez/Reuters)
A security guard stands at an entrance during a tour of U.S. Customs and Border Protection (CBP) temporary facilities in Donna, Texas, U.S. May 2, 2019. (Photo: Loren Elliott/Reuters)
Supplies are seen during a tour of U.S. Customs and Border Protection (CBP) temporary facilities in Donna, Texas, U.S. May 2, 2019. (Photo: Loren Elliott/Reuters)
A sign is seen during a tour of U.S. Customs and Border Protection (CBP) temporary facilities in Donna, Texas, U.S. May 2, 2019. (Photo: Loren Elliott/Reuters)