Raw Video - Mt. Ontake Volcano Erupts in Japan

Mount Ontake, a volcano straddling Nagano and Gifu prefectures, erupted around 11:53 a.m. Saturday, leaving several hikers injured and stranded in mountain trails.

Air traffic is being diverted around the ash cloud, which could be visible from transcontinental flights in the area. 'http://www.youtube.com/watch?v=UtaF_wmY8-M'