Japanese Ambassador to the U.N. Motohide Yoshikawa has underscored the need for Japan to be a permanent member of the Security Council, saying it was "logical" as a key financial contributor.

As Japan and other countries debate revamping the global organization's most powerful body, Yoshikawa said Japan should fulfill its duty by taking up a place in the "most important organ" of the U.N. and be a constant part of decision-making.

"Japan is a country that provides the second-largest support to the United Nations," Yoshikawa said in an interview with Kyodo News last week, referring to its budgetary contributions.