The number of migrants stuck at the Guatemala-Mexico border continued to dwindle Wednesday as detentions and resignation ate away at what remained of the latest caravan.

Overnight the first buses of migrants left Tecun Uman, Guatemala to repatriate migrants to their countries. On Tuesday, Mexico began flying and busing hundreds of migrants who had crossed to that country back to Honduras.

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Police agents stand on guard as Honduran migrants who have agreed to be returned home, board a bus provided by the Guatemalan government in Tecun Uman, Guatemala, Tuesday, Jan. 21, 2020. Hundreds of Central American migrants who entered southern Mexico in recent days have either been pushed back into Guatemala by Mexican troops, shipped to detention centers or returned to Honduras, officials said Tuesday. An unknown number slipped past Mexican authorities and continued north. (AP PhotoMoises Castillo)

The number of migrants stuck at the Guatemala-Mexico border continued to dwindle Wednesday as detentions and resignation ate away at what remained of the latest caravan.

A Honduran migrant and his child, that has agreed to be returned back home, take their seats in a bus provided by the Guatemalan government in Tecun Uman, Guatemala, Tuesday, Jan. 21 2020. Hundreds of Central American migrants who entered southern Mexico in recent days have either been pushed back into Guatemala by Mexican troops, shipped to detention centers or returned to Honduras, officials said Tuesday. An unknown number slipped past Mexican authorities and continued north. (AP PhotoMoises Castillo)

On Wednesday morning, the number of people there was perhaps half of what it was at its peak Sunday night.

Agreeing to be returned home, a Honduran migrant and her children board a bus provided by the Guatemalan government in Tecun Uman, Guatemala, Tuesday, Jan. 21, 2020. Hundreds of Central American migrants who entered southern Mexico in recent days have either been pushed back into Guatemala by Mexican troops, shipped to detention centers or returned to Honduras, officials said Tuesday. An unknown number slipped past Mexican authorities and continued north. (AP PhotoMoises Castillo)

“The efforts by the Mexican National Guard and other officials have thus far been effective at maintaining the integrity of their border, despite outbreaks of violence and lawlessness by people who are attempting to illegally enter Mexico on their way to the United States,” Wolf said. He said DHS was monitoring the caravan closely and had dozens of personnel throughout Central America assisting.

A Honduran migrant who has agreed to be returned home, prays before boarding a bus provided by the Guatemalan government in Tecun Uman, Guatemala, Tuesday, Jan. 21, 2020. Hundreds of Central American migrants who entered southern Mexico in recent days have either been pushed back into Guatemala by Mexican troops, shipped to detention centers or returned to Honduras, officials said Tuesday. An unknown number slipped past Mexican authorities and continued north. (AP PhotoMoises Castillo)

Walter Basilio, a 40-year-old from Cortes, Honduras was one of those who decided to board the bus.

A Honduran migrant who has agreed to be returned home, prays before boarding a bus provided by the Guatemalan government in Tecun Uman, Guatemala, Tuesday, Jan. 21, 2020. Hundreds of Central American migrants who entered southern Mexico in recent days have either been pushed back into Guatemala by Mexican troops, shipped to detention centers or returned to Honduras, officials said Tuesday. An unknown number slipped past Mexican authorities and continued north. (AP PhotoMoises Castillo)

A Honduran migrant who has agreed to be returned home, prays before boarding a bus provided by the Guatemalan government in Tecun Uman, Guatemala, Tuesday, Jan. 21, 2020. Hundreds of Central American migrants who entered southern Mexico in recent days have either been pushed back into Guatemala by Mexican troops, shipped to detention centers or returned to Honduras, officials said Tuesday. An unknown number slipped past Mexican authorities and continued north. (AP PhotoMoises Castillo)

A Honduran migrant and child, agreeing to be returned home, prepare to board a bus provided by the Guatemalan government in Tecun Uman, Guatemala, Tuesday, Jan. 21, 2020. Hundreds of Central American migrants who entered southern Mexico in recent days have either been pushed back into Guatemala by Mexican troops, shipped to detention centers or returned to Honduras, officials said Tuesday. An unknown number slipped past Mexican authorities and continued north. (AP PhotoMoises Castillo)

A Honduran migrant and child, agreeing to be returned home, prepare to board a bus provided by the Guatemalan government in Tecun Uman, Guatemala, Tuesday, Jan. 21, 2020. Hundreds of Central American migrants who entered southern Mexico in recent days have either been pushed back into Guatemala by Mexican troops, shipped to detention centers or returned to Honduras, officials said Tuesday. An unknown number slipped past Mexican authorities and continued north. (AP PhotoMoises Castillo)

Migrant youth fight over cigarettes on the Mexican side of the Suchiate River near Ciudad Hidalgo, Mexico, on the border with Guatemala, Tuesday, Jan. 21, 2020. Some Central American migrants are stranded in a sort of no-man’s land on the river border between Guatemala and Mexico after running up against lines of Mexican National Guard troops the previous day. (AP PhotoMarco Ugarte)

Migrant youth fight over cigarettes on the Mexican side of the Suchiate River near Ciudad Hidalgo, Mexico, on the border with Guatemala, Tuesday, Jan. 21, 2020. Some Central American migrants are stranded in a sort of no-man’s land on the river border between Guatemala and Mexico after running up against lines of Mexican National Guard troops the previous day. (AP PhotoMarco Ugarte)

At a temporary shelter erected across from the local migrant shelter, there was a change in the attitude of those who remained after the buses departed. More began talking about their own plans for going back.

Police agents stand on guard as Honduran migrants who have agreed to be returned home, board a bus provided by the Guatemalan government in Tecun Uman, Guatemala, Tuesday, Jan. 21, 2020. Hundreds of Central American migrants who entered southern Mexico in recent days have either been pushed back into Guatemala by Mexican troops, shipped to detention centers or returned to Honduras, officials said Tuesday. An unknown number slipped past Mexican authorities and continued north. (AP PhotoMoises Castillo)

Police agents stand on guard as Honduran migrants who have agreed to be returned home, board a bus provided by the Guatemalan government in Tecun Uman, Guatemala, Tuesday, Jan. 21, 2020. Hundreds of Central American migrants who entered southern Mexico in recent days have either been pushed back into Guatemala by Mexican troops, shipped to detention centers or returned to Honduras, officials said Tuesday. An unknown number slipped past Mexican authorities and continued north. (AP PhotoMoises Castillo)

On Wednesday morning, the number of people there was perhaps half of what it was at its peak Sunday night.

Mexican President Andrés Manuel López Obrador recognized the success of his government's strategy Wednesday, noting that many of the migrants had begun to voluntarily return to their countries.

U.S. Department of Homeland Security Secretary Chad Wolf commended Mexico's actions in a statement Wednesday.

A Honduran migrant and his child, that has agreed to be returned back home, take their seats in a bus provided by the Guatemalan government in Tecun Uman, Guatemala, Tuesday, Jan. 21 2020. Hundreds of Central American migrants who entered southern Mexico in recent days have either been pushed back into Guatemala by Mexican troops, shipped to detention centers or returned to Honduras, officials said Tuesday. An unknown number slipped past Mexican authorities and continued north. (AP PhotoMoises Castillo)

A Honduran migrant and his child, that has agreed to be returned back home, take their seats in a bus provided by the Guatemalan government in Tecun Uman, Guatemala, Tuesday, Jan. 21 2020. Hundreds of Central American migrants who entered southern Mexico in recent days have either been pushed back into Guatemala by Mexican troops, shipped to detention centers or returned to Honduras, officials said Tuesday. An unknown number slipped past Mexican authorities and continued north. (AP PhotoMoises Castillo)

“The efforts by the Mexican National Guard and other officials have thus far been effective at maintaining the integrity of their border, despite outbreaks of violence and lawlessness by people who are attempting to illegally enter Mexico on their way to the United States,” Wolf said. He said DHS was monitoring the caravan closely and had dozens of personnel throughout Central America assisting.

The AP saw U.S. Immigration and Customs Enforcement agents working with Guatemalan police at highway checkpoints last week as caravan members passed. The U.S. said they were there to help train and support local agents.

On Tuesday night 118 Hondurans voluntarily returned to their country from Tecun Uman on three buses organized by the International Organization for Migration and the Guatemalan government. More were expected Wednesday.

Agreeing to be returned home, a Honduran migrant and her children board a bus provided by the Guatemalan government in Tecun Uman, Guatemala, Tuesday, Jan. 21, 2020. Hundreds of Central American migrants who entered southern Mexico in recent days have either been pushed back into Guatemala by Mexican troops, shipped to detention centers or returned to Honduras, officials said Tuesday. An unknown number slipped past Mexican authorities and continued north. (AP PhotoMoises Castillo)

Agreeing to be returned home, a Honduran migrant and her children board a bus provided by the Guatemalan government in Tecun Uman, Guatemala, Tuesday, Jan. 21, 2020. Hundreds of Central American migrants who entered southern Mexico in recent days have either been pushed back into Guatemala by Mexican troops, shipped to detention centers or returned to Honduras, officials said Tuesday. An unknown number slipped past Mexican authorities and continued north. (AP PhotoMoises Castillo)

Walter Basilio, a 40-year-old from Cortes, Honduras was one of those who decided to board the bus.

“It's really (difficult) to cross to the other side now," he said. “Better to go home.” He said the clash with Mexican National Guardsmen on Monday on the opposite riverbank changed his mind. He said he wasn't interested in getting beaten up.

But there were also signs that members of the caravan still committed to traveling north were melting back into the normal migratory flow and moving into Mexico in small groups that were more difficult to detect. While the caravans have garnered attention, they represent just a fraction of the normal migratory traffic moving from Central America up through Mexico.

A Honduran migrant who has agreed to be returned home, prays before boarding a bus provided by the Guatemalan government in Tecun Uman, Guatemala, Tuesday, Jan. 21, 2020. Hundreds of Central American migrants who entered southern Mexico in recent days have either been pushed back into Guatemala by Mexican troops, shipped to detention centers or returned to Honduras, officials said Tuesday. An unknown number slipped past Mexican authorities and continued north. (AP PhotoMoises Castillo)

A Honduran migrant who has agreed to be returned home, prays before boarding a bus provided by the Guatemalan government in Tecun Uman, Guatemala, Tuesday, Jan. 21, 2020. Hundreds of Central American migrants who entered southern Mexico in recent days have either been pushed back into Guatemala by Mexican troops, shipped to detention centers or returned to Honduras, officials said Tuesday. An unknown number slipped past Mexican authorities and continued north. (AP PhotoMoises Castillo)

A Honduran migrant who has agreed to be returned home, prays before boarding a bus provided by the Guatemalan government in Tecun Uman, Guatemala, Tuesday, Jan. 21, 2020. Hundreds of Central American migrants who entered southern Mexico in recent days have either been pushed back into Guatemala by Mexican troops, shipped to detention centers or returned to Honduras, officials said Tuesday. An unknown number slipped past Mexican authorities and continued north. (AP PhotoMoises Castillo)

A Honduran migrant who has agreed to be returned home, prays before boarding a bus provided by the Guatemalan government in Tecun Uman, Guatemala, Tuesday, Jan. 21, 2020. Hundreds of Central American migrants who entered southern Mexico in recent days have either been pushed back into Guatemala by Mexican troops, shipped to detention centers or returned to Honduras, officials said Tuesday. An unknown number slipped past Mexican authorities and continued north. (AP PhotoMoises Castillo)

A Honduran migrant and child, agreeing to be returned home, prepare to board a bus provided by the Guatemalan government in Tecun Uman, Guatemala, Tuesday, Jan. 21, 2020. Hundreds of Central American migrants who entered southern Mexico in recent days have either been pushed back into Guatemala by Mexican troops, shipped to detention centers or returned to Honduras, officials said Tuesday. An unknown number slipped past Mexican authorities and continued north. (AP PhotoMoises Castillo)

A Honduran migrant and child, agreeing to be returned home, prepare to board a bus provided by the Guatemalan government in Tecun Uman, Guatemala, Tuesday, Jan. 21, 2020. Hundreds of Central American migrants who entered southern Mexico in recent days have either been pushed back into Guatemala by Mexican troops, shipped to detention centers or returned to Honduras, officials said Tuesday. An unknown number slipped past Mexican authorities and continued north. (AP PhotoMoises Castillo)

Migrant youth fight over cigarettes on the Mexican side of the Suchiate River near Ciudad Hidalgo, Mexico, on the border with Guatemala, Tuesday, Jan. 21, 2020. Some Central American migrants are stranded in a sort of no-man’s land on the river border between Guatemala and Mexico after running up against lines of Mexican National Guard troops the previous day. (AP PhotoMarco Ugarte)

Migrant youth fight over cigarettes on the Mexican side of the Suchiate River near Ciudad Hidalgo, Mexico, on the border with Guatemala, Tuesday, Jan. 21, 2020. Some Central American migrants are stranded in a sort of no-man’s land on the river border between Guatemala and Mexico after running up against lines of Mexican National Guard troops the previous day. (AP PhotoMarco Ugarte)