(CBSNEWS) — MANILA, Philippines -- Philippine police said Tuesday that they were trying to confirm the identity and cause of death of a man found dead while sitting slumped in a yacht that was drifting in the Pacific Ocean and which was apparently owned by a German adventurer.
Police Chief Inspector Dominador Plaza said the gray decomposing remains of the man resembled a mummy, adding mystery to his death. His body was discovered near the radio in the cabin of a white yacht found last week by Filipino fishermen off the southeastern province of Surigao del Sur.
There were no visible signs of foul play, like a gunshot or stabbing wound, Plaza said.
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"Initially, it looks to us that he died of natural causes, maybe a heart attack," he said by phone. "And death appears to have come suddenly because he was still sitting by the table when he passed away."