Migrants pelt Mexico's National Guard with rocks

A group of migrants trying to walk across southern Mexico have pelted officers of Mexico's National Guard with a hail of rocks, apparently injuring at least one guardsman

TAPACHULA, Mexico -- A group of migrants trying to walk across southern Mexico pelted officers of Mexico’s National Guard with a hail of rocks Thursday, apparently injuring at least one guardsman.

The guards were tailing the march and had apparently tried to detain some of the mainly Central American migrants, when a small group of a few dozen males started throwing rocks at two truckloads of guard officers equipped with plastic shields and helmets.

So heavy was the rain of rocks that at least two guard officers tumbled from the trucks onto the highway below near the town of Pijijiapan, in the southern state of Chiapas.

Video footage showed one of the guardsmen unconscious, with some migrants trying to help him while another threw a punch at him.