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A migrant girl sleeps in her mother's arms after walking through the Rio Grande river in an attempt to seek asylum into the U. S., as seen from Piedras Negras, Mexico, September 30. REUTERS/Daniel Becerril

PIEDRAS NEGRAS, MEXICO

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Migrants cross the Rio Grande river to try to apply for asylum through Eagle Pass, Texas, U.S., as seen from Piedras Negras, in Piedras Negras, Mexico, September 27. REUTERS/Daniel Becerril

PIEDRAS NEGRAS, MEXICO

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Venezuelan migrants Henry Rico, 41, carries his son Hendry, 9, ?while they walk through the Rio Grande river in an attempt to seek asylum into the U. S., as seen from Piedras Negras, Mexico, September 30. REUTERS/Daniel Becerril

PIEDRAS NEGRAS, MEXICO

Our Trending Pictures

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A Border Patrol boat passes by a group of migrants after they crossed the Rio Grande river to seek asylum in the U.S., as seen from Piedras Negras, Mexico, September 27. REUTERS/Daniel Becerril

PIEDRAS NEGRAS, MEXICO

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Migrants from Venezuela make their way through the razor wire after crossing the Rio Grande into the United States in Eagle Pass, Texas, September 26. ? REUTERS/Brian Snyder

EAGLE PASS, TX, UNITED STATES

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Migrants from Venezuela cross the Rio Grande into the United States in Eagle Pass, Texas, September 26. ? REUTERS/Brian Snyder

EAGLE PASS, TX, UNITED STATES

Our Trending Stories

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Cheila Gonzalez, 4-year-old, from Guatemala, who is traveling with her family, looks on as she and other migrants who in their attempt to reach the United States travel by train to Ciudad Juarez, are stranded near Villa Ahumada, in the state of Chihuahua, Mexico, September 29. REUTERS/Jose Luis Gonzalez

VILLA AHUMADA, MEXICO

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Migrants arrive by train in Ciudad Juarez in an attempt to reach the United States, after being stranded near the city Villa Ahumada, in Ciudad Juarez, Mexico, September 30. REUTERS/Jose Luis Gonzalez

CIUDAD JUAREZ, MEXICO

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Migrants from Venezuela walk to cross the Rio Grande river in an attempt to seek asylum into the U. S., in Piedras Negras, Mexico, September 29. REUTERS/Daniel Becerril

PIEDRAS NEGRAS, MEXICO

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A group of migrants cross the Rio Grande river in an attempt to seek asylum in the U. S., in Piedras Negras, Mexico, September 28. REUTERS/Daniel Becerril

PIEDRAS NEGRAS, MEXICO

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Migrants, mostly from Venezuela, gather near the border wall after crossing the Rio Bravo river with the intention of turning themselves in to the U.S. Border Patrol agents to request asylum, as seen from Ciudad Juarez, Mexico, September 22. REUTERS/Jose Luis Gonzalez

CIUDAD JUAREZ, MEXICO

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Migrants travelling by train to Ciudad Juarez in an attempt to reach the United States, wait near train wagons while being stranded near Villa Ahumada, in the state of Chihuahua, Mexico, September 29. REUTERS/Jose Luis Gonzalez

VILLA AHUMADA, MEXICO

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The Puente Negro Ferrocarril train bridge is seen in the background as a migrant family from Peru, including 10-year-old Luis, is held by his mother as thunderstorms approach while they await with hundreds to surrender to authorities after wading across the Rio Grande river into the United States from Mexico in Eagle Pass, Texas, September 15. ?REUTERS/Adrees Latif

EAGLE PASS, TX, UNITED STATES

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A young asylum seeker makes her way ahead of her mother between two U.S. Border Patrol agents after crossing the Rio Grande into the United States in Eagle Pass, Texas, September 27. ? REUTERS/Brian Snyder

EAGLE PASS, TX, UNITED STATES

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Migrants seeking asylum in the United States try to cross a razor wire fence deployed to inhibit the crossing of migrants into the United States, near a border wall on the banks of the Rio Bravo River, on the border between the U.S. and Mexico, as seen from Ciudad Juarez, Mexico, September 18. REUTERS/Jose Luis Gonzalez

CIUDAD JUAREZ, MEXICO

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Compatriots Douglas and David assist Leon, a migrant from Venezuela, as he carries his handicapped cousin Luis as the migrants search for an entry point past razor wire after wading across the Rio Grande river into the United States from Mexico in Eagle Pass, Texas, September 15. ?REUTERS/Adrees Latif

EAGLE PASS, TX, UNITED STATES

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Migrants, mostly from Venezuela, sit near the border wall after crossing the Rio Bravo river with the intention of turning themselves in to the U.S. Border Patrol agents, as seen from Ciudad Juarez, Mexico, September 21. REUTERS/Jose Luis Gonzalez

CIUDAD JUAREZ, Mexico

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Migrants seeking asylum in the United States gather near a wire fence as members of the Texas National Guard stand guard with the purpose of inhibiting the crossing of migrants to the United States, on the banks of the Rio Bravo river, the border between the U.S. and Mexico, as seen from Ciudad Juarez, Mexico, September 12. REUTERS/Jose Luis Gonzalez

CIUDAD JUAREZ, MEXICO

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Migrants from El Salvador seeking asylum react as they attempt to cross a wire fence to return to Mexico from the United States, after members of the Texas National Guard prevented their crossing, as seen from Ciudad Juarez, Mexico, September 12. REUTERS/Jose Luis Gonzalez

CIUDAD JUAREZ, MEXICO

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A migrant climbs the border fence to cross into the U.S. to request asylum, at Playas de Tijuana, in Tijuana, Mexico, October 2. REUTERS/Jorge Duenes

TIJUANA, MEXICO

Other Pictures in this Gallery

[21/29]A migrant from Venezuela holds her cat named "Grey" that she picked up along the route, after crossing the Rio Grande and making her way through the razor wire into the United States in Eagle Pass, Texas, September 26. ? REUTERS/Brian Snyder