The last-minute deal had echoes of Trump's first administration, when he threatened Mexico with tariffs and Sheinbaum Pardo's predecessor Andrés Manuel López Obrador defused the threat, sending thousands of troops under his newly created National Guard to deter migrants from crossing the border.

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 Trump punishes China for not halting the flow of illicit drugs.

The leaders of Mexico and Canada each said they had struck agreements to pause tariffs for 30 days, but levies on products from China were still set to take effect just after midnight.