Asked about the Bank of Japan's intervention to boost the yen, the International Monetary Fund noted the currency's recent volatility and said it was monitoring the situation carefully.

"The yen has been very volatile in recent weeks, given monetary policy tightening in the U.S. and other countries. We are monitoring the situation carefully," Ranil Salgado, the fund's mission chief for Japan said in a written statement. (Reporting by Andrea Shalal Editing by Raissa Kasolowsky)