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International relations

Indonesia says powerful underwater wave likely sunk submarine

Navy dismisses speculation of human error, involvement of foreign vessel

People throw flowers and petals with the names of the sunken KRI Nanggala-402 submarine crew members from a boat in sea near Labuhan Lalang, Bali, Indonesia, on Monday.   © Reuters

JAKARTA -- Indonesia's navy on Tuesday said that last week's fatal submarine sinking was likely caused by an underwater phenomenon known as an "internal solitary wave."

Officers said that differences in the density of waters off Bali and in the nearby Lombok Strait may have triggered a "massive movement" strong enough to pull down the submarine in seconds.

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