The new operation would include U.S. troops on the ground in Mexico striking drug labs and cartel leaders, according to current and former U.S. officials, though a deployment is not imminent.

The Trump administration has begun detailed planning for a new mission to send U.S. troops and intelligence officers into Mexico to target drug cartels, according to two U.S. officials and two former senior U.S. officials familiar with the effort.

The early stages of training for the potential mission, which would include ground operations inside Mexico, has already begun, the two current U.S. officials said. But a deployment to Mexico is not imminent, the two U.S. officials and one of the former U.S. officials said. Discussions about the scope of the mission are ongoing, and a final decision has not been made, the two current U.S. officials said.

The U.S. troops, many of whom would be from Joint Special Operations Command, would operate under the authority of the U.S. intelligence community, known as Title 50 status, the two current officials said. They said officers from the Central Intelligence Agency also would participate.