Mexican authorities said on March 19 that hundreds of illegal immigrants, including unaccompanied minors, were discovered crammed in three tractor-trailer trucks near the Mexico-Guatemala border. During routine checks, Mexican migration agents along with National Guard police found 329 Guatemalans and Hondurans, including 114 unaccompanied minors, in the vehicles. The tractor-trailer trucks were stopped on a highway south of Tuxtla Gutierrez, the capital of Chiapas state, according to a statement from Mexico’s Interior Ministry. The unaccompanied minors were given food and water, and were later transported to shelters run by the migration authority, while the adults were sent to to nearby offices to begin administrative processing, the Interior Ministry said. It comes as Mexico launches an operation to crackdown on illegal crossings at its southern border with Guatemala, including monitoring entry points with drones, and stationing officers at parts of the border. The rollout of measures to deter migrant smuggling is …