About 5,000 migrants from Central America, Venezuela, Cuba and Haiti set out on foot from Mexico's southern border Monday, walking north toward the U.S.
The migrants complained that processing for refugee or exit visas takes too long at Mexico’s main migrant processing center in the city of Tapachula, near the Guatemalan border. Under Mexico's overwhelmed migration system, people seeking such visas often wait for weeks or months, without being able to work.
