US President Donald Trump says he plans to hike tariffs on imports of Canadian goods by an extra 10 per cent because of an anti-tariff television ad aired by the province of Ontario.

The ad used the words of former president Ronald Reagan to criticise US tariffs, angering Mr Trump who said he would end trade talks with Canada.

The ad ran Friday night during the first game of the World Series, and Ontario's Premier Doug Ford said he would pull it after the weekend.

Donald Trump ends Canada trade talks over TV ad

The US president has used tariffs as leverage on many countries around the world.

"Their Advertisement was to be taken down, IMMEDIATELY, but they let it run last night during the World Series, knowing that it was a FRAUD," Mr Trump said in a post on his Truth Social platform

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