Mount Kusatsu-Shirane in Gunma erupted triggering the avalanche in the neighbouring Kusatsu International Ski Resort in Kusatsu-machi, a firefighter involved in rescue operation told Xinhua news agency.
The Japan Meteorological Agency (JMA) said smoke was initially seen rising from the south side of the volcano and a volcanic tremor with a large amplitude was also observed.
Then rocks were seen falling from the site of the volcano. The JMA raised its warning for Mt. Kusatsu-Shirane to level 3 on its scale.
(This story has not been edited by Social News XYZ staff and is auto-generated from a syndicated feed.)
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