(AGI) Tokyo, Sept 27 - Mount Ontake, Japan's second highestvolcano, has erupted. At least eight hikers have been injured,with one in a serious condition, the news agency Kyodoreported, citing the fire brigade. Ash clouds have causedflights to be diverted. The Japanese metereological office hasforecast further eruptions over the next few hours, posing arisk to people living within four kilometres of the volcano,although no evacuation orders have yet been issued. . .