More than 30 people were presumed dead on Sunday near the peak of a Japanese volcano, Mount Ontake, that erupted unexpectedly a day earlier while it was packed with hikers out to admire autumn foliage, sending a huge cloud of ash and rock tumbling down its slopes.
Japan Rescue Search for Victims of Mount Ontake Volcano Eruption

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A firefighter allows a fire engine onto a restricted road leading to Mount Ontake as firefighters head to the mountain to aid in the rescue efforts of those stranded and injured, in Otaki Village, Nagano prefecture, Japan, Sept. 28, 2014.

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A military vehicle prepares to head to rescue climbers on Mount Ontake, background, in Otaki Village, Nagano prefecture, central Japan, Sept. 28, 2014.