Trump on Saturday had directed that 25% tariffs on most imports from the two American partners go into effect at midnight Tuesday.

Both Canadian Prime Minister Trudeau and Mexican President Sheinbaum said they had agreed to bolster border enforcement efforts in response to Trump's demand to crack down on immigration and drug smuggling.

U.S. tariffs of 10% on Chinese imports came into effect on Tuesday, risking a renewed trade war between the world's top two economies as President Donald Trumppunishes China for not halting the flow of illicit drugs.