MEXICO CITY -- Hours after the U.S. Drug Enforcement Administration announced “a major new initiative” for United States and Mexico collaboration targeting gatekeepers who control illicit trafficking routes across the countries’ shared borders, Mexico’s president said Tuesday there was no such agreement.

Mexico's President Claudia Sheinbaum on Tuesday said her government did not have an agreement with the U.S. Drug Enforcement Administration over an operation known as "Project Portero" after the DEA announced this project.