() President Donald Trump said Friday he may put a 250% tariff on Canadian dairy products, a day after postponing some tariffs for the country as well as Mexico on Thursday.

Canada also has a 250% tariff on American dairy and lumber products.

“They will be met with the exact same tariff unless they drop it. That’s what reciprocal means,” Trump said. “We may do it as early as today or we may wait until Monday or Tuesday. We’re going to charge the same thing.”

Trump’s tariff plans, which he’s said he’s imposing to stop the flow of fentanyl into the United States, have caused the stock market to sink and sparked concerns about a trade war.

While he announced he delayed many imports from Mexico and some imports from Canada for a month, Trump said he still plans to put “reciprocal” tariffs in place starting April 2.

The Associated Press contributed to this report.