Mexico and Canada are the United States’ top two trading partners, accounting for nearly 30% of trade volumes.

MEXICO CITY (AP) — President Claudia Sheinbaum has suggested Mexico could retaliate with tariffs of its own, after U.S. President-elect Donald Trump threatened to impose 25% tariffs on Mexican goods if the country doesn’t stop the flow of drugs and migrants across the border.

The move, announced on social media, threatens America’s largest trading partners over alleged failure to deal with illegal immigrants and drugs.