The yen, trading just shy of ¥160 to the US dollar, is close to its level from the summer of 2024, when Japanese authorities spent billions of dollars to boost its value.

Officials had hinted in recent days at potential intervention for the currency, which has weakened against the dollar in recent months amid the Iran war and rising oil prices, as well as the gap between US and Japanese interest rates.

Thursday’s intervention was around 5 trillion-¥6 trillion (US$32 billion-US$38 billion), according to market participants’ estimates based on current account deposit data released by the Bank of Japan on Friday, Jiji Press and the Nikkei business daily reported.

The Yomiuri Shimbun reported similar figures on Saturday, citing an unnamed government source as confirming that the government had intervened.

The reports come after Japan’s finance minister hinted strongly Thursday that Tokyo was close to intervening in the market to support the yen, after the currency slipped to its lowest level against the dollar since mid-2024.