By Leika Kihara and Makiko Yamazaki
(Reuters) -U.S. President Donald Trump said on Monday he told leaders of Japan and China they cannot continue to reduce the value of their currencies as doing so would be unfair to the United States.
"I've called President Xi, I've called the leaders of Japan to say you can't continue to reduce and break down your currency," Trump said at the White House.
"You can't do it because it's unfair to us. It's very hard for us to make tractors, Caterpillar here, when Japan, China and other places are killing their currency, meaning driving it down," he said.
Instead of complaining repeatedly over the phone over such attempts, the U.S. could make up for the disadvantage its manufacturers receive by imposing tariffs, Trump added.
"So all of these things add up. And the way you solve it very easily is with tariffs," he said.
Japan's Nikkei share average fell more than 1% on Tuesday as Trump's comments briefly drove up the yen, highlighting the risk Japan's export-reliant economy faces from uncertainty over Washington's currency and tariff policies. The yen briefly hit 149.11 to the dollar, the highest since Feb. 28.
Asked about Trump's comments, Japanese Finance Minister Katsunobu Kato said Tokyo was not taking policies directly aimed at weakening the yen.
"Japan has confirmed its basic stance on currency policy" with G7 countries and with the United States, including at bilateral talks with U.S. Treasury Secretary Scott Bessent on Jan. 29, Kato told a news conference in Tokyo on Tuesday.
Speaking at a separate news conference, Japanese Economy Minister Ryosei Akazawa said the government intervenes in the currency market only when yen movement is "speculative".
Japanese policymakers have been sensitive to the risk of Trump making explicit comments about the yen and causing market volatility that could hurt its fragile economic recovery.
Prime Minister Shigeru Ishiba said last month he agreed with Trump that the two countries will leave foreign exchange-rate matters in the hands of their finance ministers.
While a weak yen gives Japanese exports a boost, Tokyo's recent forays in the currency market have been to prevent sharp yen falls that inflate import costs and hurt consumption.
Japan's top currency diplomat, Atsushi Mimura, last week acknowledged the yen's rebound back then as reflecting Japan's solid economic fundamentals and prospects of a near-term interest rate hike by the central bank.