These caravans make up only a small portion of the daily migration through Mexico toward the U.S. border. Most of these groups break apart after a few days, with migrants continuing their journey in smaller groups or with their families.

More than 2,000 migrants from various countries began walking early Monday in southern Mexico hoping to reach the United States despite president Donald Trump’s threats of mass deportations and

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