US President Donald Trump on Friday refused to restart trade negotiations with Canada, a week after halting talks over a dispute concerning an anti-tariff advertisement.

Speaking to journalists aboard Air Force One, Trump said he had a good personal rapport with Canadian Prime Minister Mark Carney, adding, “I really like him a lot. But what they did was wrong.”

When asked if talks would resume, the president responded with a firm “no”, despite Carney issuing an apology for the advertisement, which Trump described as false.

The dispute arose after Canada launched an anti-protectionist ad campaign, prompting Trump to suspend bilateral trade talks and impose an additional 10 percent tariff on Canadian products.

Despite the tensions, Trump reiterated that he maintains a positive relationship with Carney and noted that they had a productive discussion on the sidelines of the APEC summit in South Korea.

Earlier, at a summit in Malaysia, Carney had expressed that Canada was ready to resume trade talks with Washington.

The breakdown in negotiations marks a sudden shift in relations between the two historic allies, reflecting strains following Trump’s return to power.

Canada is the United States’ second-largest trading partner and a major supplier of steel and aluminum to US companies.

The vast majority of cross-border trade remains exempt from tariffs due to the North American free trade agreement, but sectoral levies particularly on steel, aluminum, and automobiles have hit Canada hard, forcing job losses and squeezing businesses.