The head of the Finance Ministry's Financial Bureau, Mitsuhiro Furusawa, has been tapped to succeed Takehiko Nakao as vice minister for international affairs, sources said Saturday.

The 57-year-old Furusawa's appointment as the country's top financial diplomat, responsible for arranging currency interventions and preparing international financial gatherings, is expected to be announced later this month, at the earliest.

Nakao needs to be replaced because he has been nominated by the government to head the Asian Development Bank. Furusawa has served as director general of the bureau since last August, following a stint at the International Monetary Fund.