President Donald Trump on Saturday warned Canada that the U.S. would impose 100% tariff on goods sold in the U.S. if the country strikes a trade deal with China.

“If Canada makes a deal with China, it will immediately be hit with a 100% Tariff against all Canadian goods and products coming into the U.S.A.,” the president wrote in a Truth Social post.

Trump also suggested Saturday that China would try to use Canada to try to avoid paying U.S. tariffs.

“If Governor Carney thinks he is going to make Canada a ‘Drop Off Port’ for China to send goods and products into the United States, he is sorely mistaken,” Trump stated.

Earlier this month, Prime Minister Mark Carney announced that Canada and China reached a preliminary deal to remove trade barriers and lower tariffs. Under the tentative agreement, Beijing cut tariffs on some Canadian agricultural products, while Ottawa increased the quotas for imports of Chinese electric vehicles, applying the most-favored-nation tariff rate of 6.1%.