Trump hails 'big progress' in Japan tariff talks

US President Donald Trump touted "big progress" in tariff talks with Japan on Wednesday, in one of the first rounds of face-to-face negotiations since his tariffs took effect, Reuters reports.

Japan had not expected the president to get involved in Wednesday's talks, viewing them as a preliminary, fact-finding mission, a sign that Trump wants to keep tight control over negotiations with dozens of countries expected over coming days and weeks.

Tokyo had also been hoping to limit the scope of the talks to trade and investment matters. But announcing his involvement early Wednesday, Trump said thorny issues including the amount Japan pays towards hosting U.S. troops were among discussion topics.

"A Great Honor to have just met with the Japanese Delegation on Trade. Big Progress!" Trump said in a social media message that contained no details of the discussions.

Opposite Trump was Ryosei Akazawa, a close confidant of Japanese Prime Minister Shigeru Ishiba who serves in the relatively junior cabinet position of economic revitalisation minister.

Speaking to reporters after the talks, Akazawa gave few details but said the parties had agreed to hold a second meeting later this month and that Trump had said getting a deal with Japan was a "top priority".