efe-epaMartin Juarez and Cesar Contreras Matamoros/Ciudad Juarez, Mexico

Tens of thousands of mainly Central American migrants are still on Mexican soil waiting for hearings on their applications for asylum in the United States a year after the governments in Washington and Mexico City established the program "Remain in Mexico."

On Jan. 25, 2019, the Mexican government agreed that the US could send asylum-seekers back to Mexico pending the processing of their applications.