Mexico President Claudia Sheinbaum said Wednesday that surveillance drone flights by the U.S. government over Mexico are occurring in collaboration with and at the request of her government. They come as U.

The CIA under President Donald Trump has been covertly flying MQ-9 Reaper drones over Mexico to spy on drug cartels, current and former officials familiar with the matter told CNN, part of Trump’s dramatic reorientation of national security assets to the US southern border.

The CIA is deploying unmanned drones over Mexico to search for fentanyl labs run by drug cartels after the Trump administration declared cartels are terrorist organizations.