Mexico President Claudia Sheinbaum says American tariffs on her country have been delayed for a month after a conversation with U.S. President Donald Trump, a statement confirmed by the White House.

"Mexico will reinforce the northern border with 10,000 members of the National Guard immediately, to stop drug trafficking from Mexico to the United States, in particular fentanyl," Sheinbaum posted on X. 

"The United States commits to work to stop the trafficking of high-powered weapons to Mexico."

The Mexican president added that the two countries will maintain dialogue, and "our teams will start working today in two areas: security and commerce."

Trump ordered the 25 per cent tariffs on all Mexican goods over the weekend, with Mexico saying it would respond with tariffs of its own without detailing on what products.

But Trump confirmed on social media that tariffs on goods from Mexico will be paused for a month for negotiations, hours before they were to take effect.

He said the talks would be headed by Secretary of State Marco Rubio, Secretary of Treasury Scott Bessent and Secretary of Commerce Howard Lutnick and high-level representatives of Mexico.

"I look forward to participating in those negotiations, with President Sheinbaum, as we attempt to achieve a 'deal' between our two Countries," the president said.

The pause added to the drama as Trump's tariffs against Canada and China are still slated to go into effect on Tuesday. Uncertainty remains about the durability of any deals and whether the tariffs are a harbinger of a broader trade war, as Trump has promised more import taxes to come.

WATCH | Plans to undo tariffs should focus on Americans, not Trump, says ex-trade negotiator:

Canadian, Mexican plan to undo tariffs should focus on Americans, not Trump: ex-trade negotiator

Economist and former Mexican trade negotiator Luis de la Calle says the ‘successful integration’ of Canadian, U.S. and Mexican economies will withstand Donald Trump. De la Calle adds that the biggest challenge the U.S. market has is its competition with China, and that breaking North American trade is a ‘punishment to U.S. consumers.’

Trump posted on social media that he spoke Monday morning with Canadian Prime Minister Justin Trudeau and would "be speaking to him again at 3:00 P.M."

Earlier, he repeated his complaints that Canada has not been co-operative, despite decades of friendship and partnerships between the two nations.

"Canada doesn't even allow U.S. Banks to open or do business there," Trump posted. "What's that all about? Many such things, but it's also a DRUG WAR, and hundreds of thousands of people have died in the U.S. from drugs pouring through the Borders of Mexico and Canada."

Trump has also repeatedly taunted Trudeau, calling him "Governor Trudeau" and saying Canada can avoid the tariffs by becoming the 51st state.

Canada said it would slap retaliatory tariffs on U.S. products, with the federal government releasing a detailed list of the retaliatory tariffs on $30 billion in goods.

More to come.