Mexican authorities probe reports of police shooting at U.S.-bound migrants

Mexican authorities are investigating reports that police shot at 17 migrants heading for the U.S. last week, killing a 19-year-old woman and wounding 2 men, local media report.

Details: People in police uniforms "opened fire" on the migrants from El Salvador near a checkpoint in Agua Dulce, Veracruz, before fleeing on Friday, Attorney General Jorge Winckler Ortiz told a news conference on Tuesday, according to the Washington Post.

Why it matters: The incident comes as Mexico steps up immigration enforcement at the request of the U.S., with thousands of national guardsmen deployed and new checkpoints created, as WashPost notes.