The eruption at Mount Ontake, a popular hiking spot in central Japan, began shortly before noon on Saturday. An undetermined number of people remained stranded or missing Sunday evening. Rescue efforts were halted because of darkness and strong sulfur odors. More than 500 rescuers resumed searching today however they were forced to suspend efforts as the volcano is still erupting. The rescue teams managed to recover eight more bodies from Mount Ontake with the use of a helicopter. At least 31 persons are confirmed dead, while four other victims were taken to hospital. It was Japan's second significant fatal natural disaster this month. In early September, heavy rains triggered landslides that killed more than 70 people in Hiroshima.