The U.S. imposed 25% tariffs on Mexico and Canada early Tuesday morning, along with imposing an additional 10% tariff on Chinese imports. The 25% tariffs will apply to all imports from Mexico and Canada, with the exception of energy products such as crude oil and natural gas, which will be tariffed at 10%.

Trump has said the duties, taken under the president’s emergency economic authority, are being imposed due to fentanyl smuggling over U.S. borders. He previously delayed the Canada and Mexico tariffs for a month to allow for negotiations, but indicated on Monday that the tariffs would go into force. Canada said Monday night that it would impose retaliatory tariffs on $100 billion of imported U.S. goods.