U.S. agent shot and killed in Mexico

MEXICO CITY — A U.S. agent was shot and killed in central Mexico on Tuesday and a second wounded when the pair were apparently caught in a road blockade staged by drug traffickers, officials said.

The two special agents with Immigration and Customs Enforcement, who were assigned to the Mexico City office at the U.S. Embassy, were driving from Mexico City toward the northern city of Monterrey when attacked, U.S. authorities said.

"ICE is working with the U.S. State Department, Mexican authorities and other U.S. law enforcement partners to investigate the shooting," the agency said.

Although both were initially reported to have survived the shooting, one of the agents later died, according to sources familiar with the matter. The second was not suffering life-threatening wounds, the sources said.

There were conflicting reports on exactly where in Mexico the agents were shot. But the sources said they were apparently caught in the kind of "narco-blockade" that traffickers and their henchmen routinely set up in cities they are fighting to control.