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Scattered debris indicates underwater blast torn apart Japan's battleship found in Philippines

  • This Friday, March 13, 2015 image made from a video captured by an unmanned underwater probe and provided by Microsoft co-founder and philanthropist Paul Allen shows what Allen’s team believes is a massive Japanese World War II battleship sunk off the coast of the Philippines. (AP Photo/Paul G. Allen) MANDATORY CREDIT

    This Friday, March 13, 2015 image made from a video captured by an unmanned underwater probe and provided by Microsoft co-founder and philanthropist Paul Allen shows what Allen’s team believes is a massive Japanese World War II battleship sunk off the coast of the Philippines. (AP Photo/Paul G. Allen) MANDATORY CREDIT  (The Associated Press)

  • This Friday, March 13, 2015 image made from a video captured by an unmanned underwater probe and provided by Microsoft co-founder and philanthropist Paul Allen shows what Allen’s team believes is a massive Japanese World War II battleship sunk off the coast of the Philippines. (AP Photo/Paul G. Allen) MANDATORY CREDIT

    This Friday, March 13, 2015 image made from a video captured by an unmanned underwater probe and provided by Microsoft co-founder and philanthropist Paul Allen shows what Allen’s team believes is a massive Japanese World War II battleship sunk off the coast of the Philippines. (AP Photo/Paul G. Allen) MANDATORY CREDIT  (The Associated Press)

  • Shigeru Nakajima, 94, former crew and a survivor of the Japanese Imperial Navy's battleship Musashi, speaks while he watches a live streaming of the sunken ship on a computer in Kashiwa, near Tokyo, Friday, March 13, 2015. Microsoft co-founder and philanthropist Paul Allen and his research team have found a massive Japanese World War II battleship off the Philippines near where it sank more than 70 years ago. (AP Photo/Eugene Hoshiko)

    Shigeru Nakajima, 94, former crew and a survivor of the Japanese Imperial Navy's battleship Musashi, speaks while he watches a live streaming of the sunken ship on a computer in Kashiwa, near Tokyo, Friday, March 13, 2015. Microsoft co-founder and philanthropist Paul Allen and his research team have found a massive Japanese World War II battleship off the Philippines near where it sank more than 70 years ago. (AP Photo/Eugene Hoshiko)  (The Associated Press)

Debris scattered over a large area at the bottom of the sea in the Philippines indicates at least one underwater explosion had torn apart the massive Japanese World War II battleship Musashi 70 years ago.

Experts from a research team analyzing a live feed from an unmanned underwater probe Friday say they believe the Musashi suffered at least one magazine explosion while descending in the 1,000-meter (3,280.84-foot) deep sea.

The Musashi sank in October 1944 in the Sibuyan Sea during the battle of Leyte, losing half of its 2,400 crew. It was last seen disappearing into the water in one piece.

The research team, sponsored by Microsoft co-founder and entrepreneur Paul Allen, was the first to successfully locate the ship, just ahead of the 70th anniversary of the war's end.