Prime Minister Shigeru Ishiba reiterated his intention to stay on as leader after securing the lowering of U.S. auto tariffs, dismissing the view that implementation of the trade deal with Washington might change his mind.

"There’s really no connection,” Ishiba said, responding to questions from reporters in Tokyo.

Ishiba was speaking after U.S. President Donald Trump signed an executive order implementing a maximum 15% tariff on most Japanese products, including cars and auto parts. The order came after weeks of negotiations that saw Japan pushing for the execution of a trade deal reached in July.