In Mexico City, some migrants have built tent cities and slept on the streets. In a country long sympathetic to migrants, neighbors are protesting.

Nidia Montenegro fled violence and poverty at home in Venezuela, survived a kidnapping as she traveled north into Mexico, and made it to the border city of Tijuana on Sunday for a U.S. asylum appointment that would finally reunite her with her son living in New York.

The Mexican government is rushing to raise tent cities for migrants deported from the U.S. Thousands of non-Mexicans now stranded in the country are overwhelming immigration officials as migrants continue to arrive from Central and South America.