Migrant caravan seeks refuge
A migrant family from Honduras, part of a caravan of thousands traveling from Central America en route to the United States, runs from tear gas released by U.S. Border Patrol near the fence between Mexico and the United States in Tijuana, Mexico, on Sun., Nov. 25, 2018.
Migrant girl
A migrant girl from Honduras, part of a caravan of thousands traveling from Central America en route to the United States, cries after running away from tear gas released by U.S. Customs and Border Protection (CBP) agents near the border wall between the U.S. and Mexico in Tijuana, Mexico, November 25, 2018.
Tear gas
A photojournalist is surrounded in a cloud of tear gas released by U.S. Customs and Border Protection (CBP) agents after migrants, part of a caravan of thousands from Central America, attempted to illegally cross the border into the United States from Tijuana, Mexico, November 25, 2018.
Turned back
Migrants, part of a caravan of thousands from Central America trying to reach the United States, return to Mexico after being hit by tear gas by U.S. Customs and Border Protection (CBP) after attempting to illegally cross the border wall into the United States in Tijuana, Mexico, November 25, 2018.
Father and daughter
A migrant girl, part of a caravan of thousands from Central America, sits on top of her father's shoulders as they are surrounded by police while marching to the United States border in Tijuana, Mexico, November 25, 2018.
Approaching the border
Migrants, part of a caravan of thousands from Central America trying to reach the United States, make their way to the border fence between Mexico and the United States in Tijuana, Mexico, November 25, 2018.
Border quest
Migrants, part of a caravan of thousands traveling from Central America en route to the United States, climb a wall to evade police and reach the border between the U.S and Mexico in Tijuana, Mexico, November 25, 2018.
Border area
Migrants, part of a caravan of thousands from Central America trying to reach the United States, walk near the border fence between Mexico and the United States in Tijuana, Mexico, November 25, 2018.
Nearing the border
Migrants, part of a caravan of thousands traveling from Central America en route to the United States, cross the Tijuana river to reach the border wall between the U.S. and Mexico, November 25, 2018.
Protest march
Migrants, part of a caravan of thousands traveling from Central America en route to the United States, take part in a protest march towards the border wall between the U.S. and Mexico, in Tijuana, Mexico, November 25, 2018.
Migrant caravan
Honduran migrants leave Guatemala City on October 18, 2018, heading in a caravan to the United States.
A caravan of about 2,000 Honduran migrants set out on October 13 from the impoverished, violence-plagued country for the long journey through Guatemala and Mexico to the U.S. border. The numbers have grown to at least 7,200, the largest such group ever. President Trump warned Honduras he will cut millions of dollars in aid if the migrants are allowed to reach the United States.
Hazardous crossing
A man, part of a caravan of migrants from Central America en route to the United States, carries a girl through the Suchiate River from Guatemala into Ciudad Hidalgo, Mexico, October 29, 2018.
Crowded camp
Migrants rest in a makeshift camp in Santiago Niltepec, Mexico, October 29, 2018.
The U.S. is deploying at least 5,200 troops to the U.S.-Mexico border area.
Razor wire
Migrants stand in front of the fortified border gate between Guatemala and Mexico, in Tecun Uman, Guatemala, October 29, 2018.
Long walk
Migrants, traveling in a caravan from Central America en route to the United States, walk along the highway to Juchitan from Santiago Niltepec, Mexico, October 30, 2018.
The journey is expected to take many weeks.
Human chain
Migrants make a human chain to pull people from the river separating Guatemala from Ciudad Hidalgo, Mexico, October 29, 2018.
Honduran flag
Honduran migrants walk behind the Honduran flag in a caravan towards the United States in Chiquimula, Guatemala, on October 17, 2018.
Most of the travelers tell CBS News they are fleeing extreme poverty, but the U.S. does not grant asylum or refugee status for people seeking economic opportunity. Some also say gang violence prompted them to flee their homes.
Honduran migrants
Honduran migrants aboard vehicles headed towards the United States, in Guatemala City, on October 18, 2018.
Once the caravan reached Mexico, Mexican officials say at least 1,743 applied for permission to stay there rather than continue on to the U.S.
Crossing into Mexico
Honduran migrants cross the border from Guatemala into Mexico on October 19, 2018.
Mexican police
Mexican Federal Police officers get ready for the arrival of a caravan of Honduran migrants heading to the U.S., on the international bridge in Ciudad Hidalgo, Mexico, on the border with Guatemala, on October 19, 2018.
Border barricade
Honduran migrants heading in a caravan to the U.S. remove a barrier at the Guatemala-Mexico international border bridge in Ciudad Hidalgo, Mexico, on October 19, 2018.
President Trump has threatened to cut aid to Central America over the migrants. Last year, the U.S. sent more than $300 million in foreign aid to Honduras, Guatemala and El Salvador.
Confronting police
A woman holds a crying baby as Honduran migrants heading in a caravan to the U.S. are met by Mexican police at the gates of the Guatemala-Mexico international border bridge in Ciudad Hidalgo, Mexico, on October 19, 2018.
Tear gas
Men attempt to grab a tear gas canister thrown by the Mexican Federal Police, after Central American migrants rushed the gate at the border crossing in Ciudad Hidalgo, Mexico, on October 19, 2018.
Police barricade
A youth calls for calm as he stands in front of a line of Mexican Federal Police in riot gear, after Central American migrants rushed the gate at the border crossing in Ciudad Hidalgo, Mexico, October 19, 2018.
Cooling down
A Honduran migrant is cooled down after struggling to cross one of the gates of the Guatemala-Mexico international border bridge in Ciudad Hidalgo, Mexico, on October 19, 2018.
Riot police
A Honduran migrant mother and child cower in fear as they are surrounded by Mexican Federal Police in riot gear, at the border crossing in Ciudad Hidalgo, Mexico, October 19, 2018.
Central Americans traveling in a caravan broke through a Guatemalan border fence and streamed by the thousands toward Mexican territory, defying Mexican authorities' entreaties for an orderly migration and U.S. President Donald Trump's threats of retaliation.
Over the fence
Honduran migrants heading in a caravan to the U.S. lift a child over the gate of the Guatemala-Mexico international border bridge in Ciudad Hidalgo, Mexico, on October 19, 2018.
Stopped on bridge
Aerial view of a Honduran migrant caravan stopped on the Guatemala-Mexico international bridge in Ciudad Hidalgo, Chiapas state, Mexico, on October 19, 2018.
The group is more than four times larger than the caravan of about 1,500 Central American migrants who reached the U.S.-Mexico border in April 2018. Of those 1,500, only about 250 legally remained in the U.S. six months later pending an immigration hearing, according to Pueblos sin Fronteras, a humanitarian aid organization for migrants.
Family allowed through
A Honduran migrant family is allowed to pass through to safety by Mexican Federal Police in riot gear, at the border crossing in Ciudad Hidalgo, Mexico, on October 19, 2018. Central Americans traveling in a caravan broke through a Guatemalan border fence and streamed by the thousands toward Mexican territory.
Rushing the border
Thousands of Honduran migrants rush across the border towards Mexico, in Tecun Uman, Guatemala, October 19, 2018. Migrants broke down the gates at the border crossing and began streaming toward a bridge into Mexico.
Police push back
Mexican Federal Police officers try to block Honduran migrants from going through at the Guatemala-Mexico international border bridge in Ciudad Hidalgo, Mexico, on October 19, 2018.
Border crush
Thousands of Honduran migrants rush across the border towards Mexico, in Tecun Uman, Guatemala, on October 19, 2018. Migrants broke down the gates at the border crossing and began streaming toward a bridge into Mexico.
Crying child
Migrant women and children rush onto the bridge between Guatemala and Mexico after pushing past Guatemalan police on October 19, 2018.
Makeshift raft
Honduran migrants heading in a caravan to the U.S. arrive in Ciudad Hidalgo, Mexico, aboard a makeshift raft after crossing the Suchiate River, the natural border between Guatemala and Mexico, on October 20, 2018.
Church shelter
Honduran migrants heading towards the United States rest at a gymnasium of a Catholic church in Chiquimula, Guatemala, on October 16, 2018.
Rainy ride
Honduran migrants aboard a pick-up van heading to the United States under heavy rain in Siquinala municipality, south of Guatemala City, on October 18, 2018.
Line for food
Honduran migrants line up to receive food after arriving in Mazatenango, 160 km south of Guatemala City, on October 18, 2018.
Honduran flag
Migrants heading in a caravan to the United States walk with a Honduran national flag as they leave Guatemala City, on October 18, 2018.
Mother and children
Honduran migrants stop to rest at a gas station in Zacapa, Guatemala, on October 16, 2018.
Walking north
Honduran migrants walk across the Guatemala-Mexico international border bridge, from Guatemala's Ciudad Tecun Uman to Mexico's Ciudad Hidalgo, on October 19, 2018.
Moment of rest
Honduran migrants rest in Ciudad Tecun Uman, Guatemala, near the border with Mexico, on October 19, 2018.
To obtain asylum in the U.S., migrants will have to prove they have a credible fear of harm if they return to their home country. Economic hardship is not an acceptable reason.
Bible reading
A Honduran migrant heading to the United States reads the New Testament as he rests at the Casa del Migrante (Migrant's House) in Guatemala City on October 17, 2018.
Trump t-shirt
A Honduran migrant wearing a "Donald Trump for President" t-shirt walks across the Guatemala-Mexico international border bridge, from Guatemala's Ciudad Tecun Uman to Mexico's Ciudad Hidalgo, on October 19, 2018.
Confronting police
Honduran migrants, heading in a caravan to the United States, argue with Guatemalan police officers at the border with Mexico, on October 19, 2018. The previous day, President Trump threatened to close the southern U.S. border if Mexico fails to stem what he called the "onslaught" of migrants from Central America.
Approaching Mexico
Honduran migrants, heading in a caravan to the United States, gather at the central park of Ciudad Tecun Uman, Guatemala, near the border with Mexico, on October 19, 2018.
Truck transit
Honduran migrants aboard a truck heading through Guatemala towards the border with Mexico on October 19, 2018.
Church shelter
Honduran migrants sleep on the floor at Tres Caidas Church in Tecun Uman, Guatemala, near the border with Mexico, on October 18, 2018.
Guatemala City
Honduran migrants get on a car to go to Tecum Uman, on Guatema's border with Mexico, in Guatemala City, on October 18, 2018.
Raft crossing
Honduran migrants heading in a caravan to the U.S. cross the Suchiate River in a makeshift raft in Ciudad Tecun Uman, Guatemala, on October 19, 2018.
Guatemala-Mexico border
Honduran migrants heading in a caravan to the U.S. open one of the gates of the Guatemala-Mexico international border bridge in Ciudad Hidalgo, Mexico, on October 19, 2018.
The U.S. is deploying at least 5,200 troops to the U.S.-Mexico border area.
Walking to the border
Honduran migrants walk across the Guatemala-Mexico international border bridge on October 19, 2018.
Crossing into Mexico
Honduran migrants, including a man pushing a baby carriage, walk across the Guatemala-Mexico international border bridge on October 19, 2018.
Guatemala park
Honduran migrants heading in a caravan to the United States rest in a park in Tecun Uman, Guatemala, on the border with Mexico, on October 18, 2018.
Waving on the road
Honduran migrants wave from a vehicle on their way to Tecun Uman, Guatemala, on the border with Mexico, as they take part in a caravan heading to the United States on October 19, 2018.
"We are not criminals"
A Honduran migrant, heading in a caravan to the United States, holds a sign reading, "Donald Trump, we are not criminals, we are workers who want to work," in Tecun Uman, Guatemala, on October 19, 2018.
Left behind
A Honduran boy cries after his mother decided he wouldn't accompany her across the Goascoran River - the border between Honduras and El Salvador - since its current is too strong, on October 18, 2018.
Muddy journey
A Honduran migrant prepares to cross the Goascoran River to enter illegally into El Salvador, on October 18, 2018.
Hazardous crossing
A Honduran migrant prepares to cross the Goascoran River to enter illegally into El Salvador, on October 18, 2018.
Heavy load
A Honduran migrant woman walks next to her son as she prepares to cross the Goascoran River to enter illegally to El Salvador on October 18, 2018.
Raging river
Honduran migrants attempt to cross the Goascoran River to enter illegally to El Salvador on October 18, 2018.
Lunch break
Honduran migrants, part of a caravan heading to the United States, stop to eat in Guatemala on October 18, 2018.
Young migrant
A Honduran migrant woman helps a boy at the main square of Ciudad Hidalgo, in Chiapas state, Mexico, on October 19, 2018.
Entering Mexico
Honduran migrants cross the border from Guatemala into Ciudad Hidalgo, Mexico, on October 19, 2018.
Morning coffee
Honduran migrants heading to the U.S. get cups of coffee at the main square of Ciudad Hidalgo, Mexico, on October 19, 2018.
Makeshift bed
A Honduran migrant heading to the U.S. rests at a temporary shelter in Ciudad Hidalgo, in Chiapas state, Mexico, on October 19, 2018.
River crossing
Honduran migrants attempt to cross the Goascoran River from Honduras into El Salvador on October 18, 2018.
Waiting to move
Honduran migrants rest in the main square of Ciudad Hidalgo, Mexico, on October 19, 2018.
Rough sleep
Honduran migrants sleep on the ground in Chiquimula, Guatemala, on October 17, 2018.
Crowded truck
Honduran migrants crowd into a truck in a caravan to the United States, in Guatemala City, on October 18, 2018.