Bank of Japan Governor Haruhiko Kuroda said that he would guide monetary policy appropriately without any preset conditions in mind, while warning against heightening risks from the global economy and the Chinese-U.S. trade war.

Kuroda also said it was important for the central bank to stick patiently to its powerful monetary easing to maintain momentum towards achieving its 2% inflation target.

"Risks are skewed to the downside, mainly from overseas economies," he said.