TAPACHULA, Mexico/WASHINGTON, (Reuters) – Mexico is struggling to stem the flow of Central American migrants traveling to the United States ahead of the U.S. presidential election, causing major concern in Washington, which is weighing sending more agents to help.
In 2014, Mexico moved to strengthen its southern border when a surge in child migrants from Central America sparked a political crisis in the United States.
Last year, Mexico detained over 190,000 migrants, more than double the number in 2012.
But official data examined by Reuters shows that fewer migrants have been captured in Mexico this year even as the number caught on the U.S. border has soared.
The slowdown in detentions on Mexican soil is frustrating U.S. officials who feel that Mexico could be doing more, according to a source familiar with internal briefings on the topic at the U.S. Department of Homeland Security (DHS).
Illegal immigration is stoking a fierce debate ahead of the U.S. election on Nov. 8 with Republican candidate Donald Trump vowing to deport millions of people and build a wall along the Mexican border if elected president.
Mexico says its National Migration Institute (INM), which regulates migration in the country, is already working flat out to contain the problem, but it has a fraction of the resources that U.S. agencies have.
“We’re at the limit of our resources,” Humberto Roque Villanueva, Mexico’s deputy interior minister responsible for migration, told Reuters.
The number of families stopped at the U.S.-Mexico border jumped 122 percent between October 2015 and April 2016 from the same period a year earlier, according to data from U.S. Customs and Border Protection (CBP).
The number of detained “unaccompanied minors” – children traveling without relatives – was 74 percent higher. Most of the Central Americans come from Guatemala, Honduras and El Salvador.
Despite those increases, fewer migrants are being caught as they move through Mexico. Over the same period, Mexico detained and deported about 5 percent fewer people than in 2014/15. So far this year, 3.5 percent fewer unaccompanied minors have been stopped.
The DHS is considering sending more agents south to train Mexican officials on how to track human traffickers and stop migrants crossing the Mexico-Guatemala border, according to an internal briefing document obtained by Reuters.
U.S. Representative Henry Cuellar, who sits on the House Homeland Security Appropriations Subcommittee, said DHS officials told him they hope to help Mexico strengthen its southern border.