President Donald Trump said the US will put a 35% tariff on some imports from Canada, escalating the tensions between two countries that have impaired one of the world’s largest trading relationships.

Trump has justified tariffs on goods from Canada, the top U.S. export market, by accusing it of failing to stop the cross-border flow of fentanyl, even though U.S. government data shows Canada accounts for only 1% of the fentanyl that enters the United States.

(Reuters) -Futures tied to Canada's main stock index slipped on Friday, as investors woke up to U.S. President Donald Trump's new tariff regime that included fresh levies on Canada and dozens of other countries.