Mexican soldiers opened fire at a pickup truck carrying migrants, killing six people from Egypt, El Salvador, and Peru, in an incident that the country’s President Claudia Sheinbaum described as a “regrettable.

The country’s defense ministry said the military officers who opened fire might have mistaken the migrants for cartel members.

Mexico vows to investigate after soldiers opened fire on a truck carrying U.S.-bound migrants near the country's border with Guatemala, killing six.