A caravan of at least hundreds of migrants left from the southern Mexican city of Tapachula on Sunday, heading for the U.S. southern border, APA reports citing Reuters.
The smaller caravan plans to join a larger one that left six days ago and is currently stopped about 25 miles (40 km) north in the town of Huixtla.
Organizers said the first had swelled to some 7,000 people while the government in the southern Chiapas state said it estimated the group at 3,500 people.