Over 30 people were feared dead on Sunday (September 28) as more than 500 Japanese military and police set out to search the peak of Mount Ontake, a day after its sudden eruption trapped hundreds on the mountain for hours.<br/> <br />Police said they were found in a state of "cardiopulmonary" arrest, but declined to confirm their deaths pending a formal examination, as per Japanese custom.<br/> <br />Video released by Japan's Self Defense Force showed soldiers pulling up survivors to helicopters from the ash-covered mountain at around 10:00 a.m. JST (1:00 GMT) on Sunday.<br/> <br />Hundreds of people, including children, were stranded on Mount Ontake after it erupted without warning on Saturday (September 27), sending ash pouring down the slope for more than 3 km (2 miles.)<br/> <br />Most made their way down that evening but at least 30 spent the night near the 3,067 metre (10,062 feet) peak.<br/> <br />More than 40 people were injured, several with broken bones, and authorities were trying to confirm the whe