President Trump confirmed Thursday that tariffs he had threatened and then delayed against Canada and Mexico are set to go into effect next week, while China will face increased tariffs as part of a push to crack down on fentanyl.

“Drugs are still pouring into our Country from Mexico and Canada at  very high and unacceptable levels. A large percentage of these Drugs, much of them in the form of Fentanyl, are made in, and supplied by, China,” Trump posted on Truth Social.

“We cannot allow this scourge to continue to harm the USA, and therefore, until it stops, or is seriously limited, the proposed TARIFFS scheduled to go into effect on MARCH FOURTH will, indeed, go into effect, as scheduled,” Trump added. “China will likewise be charged an additional 10% Tariff on that date.”

The president signed off on 25 percent tariffs on Mexican and Canadian imports earlier this month, but then delayed them for a month after those two countries took actions to address the flow of drugs at the border.