TOKYO, Aug 31 (Reuters) - Bank of Japan board member Toyoaki Nakamura said on Thursday it was premature to tighten monetary policy as recent rises in inflation were mostly driven by higher import costs rather than wage gains.
"Sustainable, stable achievement of our 2% inflation isn't in sight yet. We therefore need more time before shifting to monetary tightening," Nakamura said in a speech to business leaders in the city of Gifu in central Japan. (Reporting by Leika Kihara; Editing by Christian Schmollinger)
