Mexico's president warned the United States on Thursday her country would never tolerate an "invasion" of its national sovereignty and vowed fresh legal action against US gunmakers after Washington designated cartels as terrorist organizations.

The remarks were the latest in a series hitting back at the administration of President Donald Trump, which has ramped up pressure on its southern neighbor to curb illegal flows of drugs and migrants.

Mexico is trying to avoid the sweeping 25-percent tariffs threatened by Trump by increasing cooperation in the fight against narcotics trafficked by the cartels in his sights.

The eight Latin American drug trafficking groups designated as terrorist organizations include Mexican gangs such as the Jalisco New Generation and Sinaloa cartels -- two of the country's most powerful and violent criminal organizations.

But the designation "cannot be an opportunity for the US to invade our sovereignty," President Claudia Sheinbaum told a news conference.

"They can call them (the cartels) whatever they want, but with Mexico, it is collaboration and coordination, never subordination or interventionism, and even less invasion."

In an interview........

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