US President Donald Trump has said he is increasing tariffs on goods imported from Canada after the province of Ontario aired an anti-tariff advertisement featuring former President Ronald Reagan.

In a post on social media on Saturday, Trump called the advert a “fraud” and lashed out at Canadian officials for not removing it ahead of the World Series baseball championship.

“Because of their serious misrepresentation of the facts, and hostile act, I am increasing the Tariff on Canada by 10% over and above what they are paying now,” he wrote.

After Trump on Thursday withdrew from trade talks with Canada, the Ontario premier saidhe would take down the advert.

Canada is the only G7 country that has not reached a deal with the US since Trump began seeking to charge steep tariffs on goods from major trading partners this year.

The US has already imposed a 35% levy on all Canadian goods – though most are exempt under an existing free trade agreement. It has also slapped sector-specific levies on Canadian goods, including a 50% levy on metals and 25% on automobiles.

In his post, sent while he was traveling to Asia, Trump seemed to say he was adding 10 percentage points to those taxes.

Three-quarters of Canadian exports are sold to the US, and Ontario is home to the bulk of Canada’s automobile manufacturing.