Bitcoin fell nearly 15 percent against the yen on the bitFlyer exchange in Tokyo, outpacing dollar-denominated losses. The decline was influenced by a sharp appreciation of the yen as a result of Japan's 0.25 percent interest rate hike. The yen has rallied nearly 10 percent against the dollar over the past three weeks, triggering carry trade positions squaring, leading to a sell-off of risky assets, including bitcoin, and market volatility. Trading volume on the bitFlyer exchange surged 241 percent in 24 hours, topping $220 million.