The pair hit the 15 year lows trading now at 86.87 yens per dollar. The Japanese Finance vice-Minister said that the BoJ won't intervene to weaken the currency, but they will be paying attention to the Forex markets developments and will act accordingly before any anti-natural events.If the trend stays to the lower side, the key support is at 86.26, area of potential upwards rebound to 87.04 yens per dollar.