WASHINGTON (TNND) — President Donald Trump will announce Monday that the United States will impose 25% tariffs on all steel and aluminum imports.

Trump told reporters the news on the Air Force One on his way to the Super Bowl in New Orleans Sunday.

“Any steel coming into the United States is going to have a 25% tariff,” he said. "Aluminum too."

Trump added that he would announce "reciprocal tariffs" on "Tuesday or Wednesday" — meaning that the U.S. would impose import duties on products when another country levied duties on U.S. goods.

“If they are charging us 130% and we’re charging them nothing, it’s not going to stay that way,” he told reporters.

Last week, Trump imposed a 10% tariff on all Chinese goods imported into the U.S. and paused the previously threatened 25% import taxes on all goods from Canada and Mexico.

China quickly retaliated and said it would implement a 15% tariff on coal and liquefied natural gas products and a 10% tariff on crude oil, agricultural machinery and large-engine cars imported from the U.S.

On Friday, Trump said he would also delay the tariffs on the millions of small packages — often from fast-fashion firms such as Temu and Shein — until customs officials can figure out ways to impose them. The small packages have previously been exempt from tariffs.

Financial markets fell on Friday after Trump first said he would impose the reciprocal tariffs. Stock prices also dropped after a measure of consumer sentiment declined on Friday, largely because many respondents cited tariffs as a growing worry. The survey also found that Americans are expecting inflation to tick up in the coming months because of the duties.

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Editor's note: The Associated Press contributed to this article.