An KRI Nanggala-402 submarine owned by Indonesia, the same model as the one that went missing on Wednesday.
Alex Widojo/Anadolu Agency/Getty Images
  • The missing Indonesian submarine has been found, according to Indonesian military officials.
  • The vessel is reportedly deep in the ocean and broken into multiple pieces.
  • "It can be stated that the KRI Nanggala has sunk and all of its crew have died," one official said.
  • See more stories on Business Insider SA's home page.

The Indonesia naval submarine that went missing this week has been found shattered into at least three pieces deep in the ocean, the Indonesian military said Sunday.

The Indonesian navy, supported by international assets, has been searching tirelessly for the KRI Nanggala 402 and its crew since it disappeared during a training exercise Wednesday.

Search teams found an oil slick early in the search, and then in recent days, they discovered items that appear to have come from inside the vessel, such as prayer rugs, a grease bottle, part of a coolant pipe, and a torpedo component.

"With the authentic evidence we found believed to be from the submarine, we have now moved from the 'sub miss' phase to 'sub sunk,'" Indonesian Navy Chief Yudo Margono said at a press conference Saturday. All passengers are presumed dead, the AP reported.

Margono also revealed that a sonar scan detected an object believed to be the missing submarine at a depth of almost 2,790 feet. At that depth, which is well beyond the vessel's maximum depth, the hull of the submarine would not have been able to withstand the crushing water pressure.

On Sunday, Margono announced that the submarine had been found.

"The KRI Nanggala is divided into three parts, the hull of the ship, the stern of the ship, and the main parts are all separated, with the main part found cracked," Navy Chief of Staff Yudo Margono said Sunday, according to Reuters.

"Based on the evidence, it can be stated that the KRI Nanggala has sunk and all of its crew have died," Indonesian military chief Marshal Hadi Tjahjanto said. The submarine was carrying 53 people at the time it disappeared.

The loss of KRI Nanggala 402 and all 53 lives on board puts this deadly tragedy among some of history's worst submarine disasters, incidents like the sinking of ARA San Juan and the loss of 44 Argentine sailors just a few years ago.

"All of us Indonesians express our deep sorrow over this tragedy, especially to the families of the submarine crew," Indonesian President Joko Widodo said Sunday, expressing his condolences to the families of the sailors lost aboard the sunken submarine.

Although there are theories, such as a power failure preventing the submarine from resurfacing after experiencing some sort of emergency situation, it is unclear exactly what happened to the KRI Nanggala submarine 402 so far.

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