MEXICO CITY (AP) — 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.

The Drug Enforcement Administration on Monday announced the launch of Gatekeeper, a binational collaboration to identify Mexican cartel leaders in smuggling corridors along the Southwest border.

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.