Correction: The current prime minister of Japan is Shigeru Ishiba, not Fumio Kishida. The U.S. dollar is notching its strongest one-day gain against the Japanese yen in nearly two months as traders react to President Donald Trump's sweeping new tariffs targeting multiple U.

The United States will raise its “reciprocal tariff” on Japan to 25% effective Aug. 1, President Donald Trump said in a letter addressed to Prime Minister Shigeru Ishiba on Monday.

The U.S. will put in place a 25% tariffs on imports from Japan and South Korea starting on Aug. 1, according to letters posted by President Donald Trump on his social media platform on Monday. Trump wrote to Japanese Prime Minister Shigeru Ishiba and South Korean President Lee Jae-myung to inform them of the news, citing unfair trade balances.