Migrants march from south Mexico as US lifts COVID ban Some 500 migrants from Central America, Venezuela and elsewhere have pushed past police and National Guard lines in southern Mexico TAPACHULA, Mexico -- Some 500 migrants from Central America, Venezuela and elsewhere pushed past police and National Guard lines in southern Mexico Friday in one of the first such marches this year. The migrants described the march as a traditional annual protest related to Holy Week, and those at the front carried a white cross, as others have done in previous years.