Japan is on the brink of currency intervention if the yen weakens any further, according to one of the country¡¯s former top currency officials.

¡°Amid no change in U.S. and Japan interest rates, the yen has depreciated against the dollar quite rapidly,¡± said Mitsuhiro Furusawa, former vice minister of finance for international affairs, on Tuesday.

¡°Should this trend continue, intervention will come,¡± Furusawa said, adding that ¡°we are very close.¡±