President Trump said he plans to designate Mexican drug cartels as terrorist groups and “start hitting them with drones.”

“I don’t want to say what I’m going to do, but they will be designated,” Trump told former Fox News host Bill O’Reilly in a radio interview Tuesday.

“I will be designating the cartels . . . absolutely. I have been working on that for the last 90 days,” he added.

Mexican President Andrés Manuel López Obrador responded Wednesday, saying, “Cooperation, yes, interventionism, no.”

The leftist leader noted that he asked Foreign Minister Marcelo Ebrard to set up talks with Washington. Ebrard said he was “already in communication” with Team Trump.

Under US law, a violent foreign group or person who threatens American security can be designated as terrorist in nature and be subject to sanctions.

Once a group is designated as a terrorist organization, it is illegal under US law for people in the United States to knowingly offer support.

Financial institutions that become aware they have funds tied to the group must block the money and alert the Treasury Department. The group’s members also cannot enter the country and can be deported.

Trump’s move comes after he called for a “war” on the cartels in early November, when nine women and children from a Mormon community in Mexico were killed in a hail of gunfire.

The victims were dual US-Mexican citizens.

With Post wires