FILE PHOTO: US President Donald Trump welcomes Japanese Prime Minister Shinzo Abe during a bilateral meeting on the sidelines of the 73rd session of the United Nations General Assembly in New York (USA) on September 26, 201
The report follows Trump's statement on Friday that Abe has nominated him for the Nobel Peace Prize to open talks with North Korea and reduce tension.
The Japanese leader had given him the "most beautiful copy" of a five-page nomination letter, Trump said at a White House press conference.
The US government had informed Abe of the nomination of the Noble Peace Prize following Trump's summit meeting in June last year with North Korean leader Kim Jong Un, the first meeting of a North Korean leader and a seated US president, citing Asahi an unnamed Japanese government source.
A Tokyo State Department spokesman said the ministry knew about Trump's statements, but said, "would not comment on the interaction between the two leaders."
The White House had no immediate opinion when contacted by Reuters.
The Nobel Foundation website states that a nomination for the Nobel Peace Prize can be submitted by anyone who meets the nomination criteria, including current heads of state. According to the rules of the Foundation, names and other information about unsuccessful nominations for 50 years can not be disclosed.
coverage by Makiko Yamazaki; Additional reporting by Steve Holland in Washington; Cut by Sam Holmes