US President Donald Trump has said “not nearly enough” progress is being made in negotiations with Mexico to avert his threatened tariffs.
Trump administration officials will meet for a second day of talks with Mexico’s foreign minister in Washington on Thursday.
Mr Trump vowed import duties of 5% will take effect on Monday unless Mexico stems the flow of migrants to the US.
Those numbers reached their highest level in more than a decade last month.
US Vice-President Mike Pence and Secretary of State Mike Pompeo held talks with Mexican Foreign Minister Marcelo Ebrard at the White House on Wednesday, but the 90-minute meeting ended without agreement.
Mr Ebrard told a news conference afterwards the negotiations had been cordial, but tariffs were not even discussed.
“The dialogue was focused on migration flows and what Mexico is doing or is proposing to the United States, our concern about the Central American situation,” he said.
The US president, who is in Europe for World War Two commemorations, warned on Twitter that the tariffs would go ahead next Monday if there is no breakthrough.
Immigration discussions at the White House with representatives of Mexico have ended for the day. Progress is being made, but not nearly enough! Border arrests for May are at 133,000 because of Mexico & the Democrats in Congress refusing to budge on immigration reform. Further…
— Donald J. Trump (@realDonaldTrump) June 5, 2019