The yen hit its weakest level in three decades against the U.S. dollar after the Bank of Japan left interest rates on hold on Friday, leaving traders on edge about the risk of official intervention. The yen was 0.
The yen fell amid volatile trade on Friday after the Bank of Japan (BOJ) maintained its accommodative monetary policy stance at the conclusion of its two-day policy meeting, while Asian shares rose in the broader market.
The weak yen is putting pressure on the Bank of Japan to tighten monetary policy, analysts say, although it is not expected to hike its main interest rate when it wraps up a two-day meeting on Friday.