The missing Indonesian submarine has been found broken into at least three pieces. According to the military all 53 crew members aboard have been killed.

Missing Indonesian submarine found broken into 3 pieces

An Indonesian navy submarine that disappeared off the island of Bali this week with crew members on board is believed to have sunk, the country’s military said after recovering debris from the vessel.

Debris of missing Indonesian submarine found, Navy says it sank with dozens onboard

The oxygen supply for the Indonesia's missing submarine is believed to have run out with no sign of the vessel. The Indonesian Navy's KRI Nanggala 402 submarine went missing on Wednesday, after it failed to re-emerge from its last reported dive in waters near Bali.

Oxygen believed to have run out in Indonesia's missing submarine

Indonesia's president ordered an all-out effort to find a missing submarine in a race against time to save the 53 crew, whose oxygen supply defence chiefs said would last only until Saturday.

The&nbsp;crew on the KRI Nanggala 402 could have enough oxygen until early Saturday, but time was quickly running out as rescuers scoured the coast off holiday island Bali where it disappeared.

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"There's time until Saturday around 3:00 am. Let's hope we can find them before then," Navy Chief of Staff Yudo Margono told reporters.

However, defence analysts have warned that the vessel could have already broken into pieces if it has sunk to depths believed to be as much as 700 metres (2,300 feet) -- well below what it was built to withstand.

Indonesia sent a helicopter and five ships to search waters&nbsp;north&nbsp;of the holiday island of Bali but found no signs of the KRI Nanggala-402, which went missing early on Wednesday during a torpedo drill.

"I have ordered the military chief, navy chief of staff, the search and rescue agency and other instances to deploy all the forces and the most optimal efforts to find and rescue the submarine crew," President Joko Widodo said on Thursday.

"The main priority is the safety of the 53 crew members."

Yudo Margono, the navy chief of staff, said the search was being aided by calm conditions but the crew's air supply would last only until Saturday..

"Hopefully before they can be found, the oxygen will be enough," he told a news conference in Bali.

The vessel had been cleared for use and was in good condition, he added.

The 1,395-tonne vessel was built in Germany in 1977, according to the defence ministry, and joined the Indonesian fleet in 1981. It underwent a two-year refit in South&nbsp;Korea&nbsp;that was completed in 2012.

Indonesia said several countries had responded to requests for assistance, with Malaysia and Singapore sending ships and Australia offering "help in any way we can".

The US&nbsp;Defence Department is sending "airborne assets" to assist in the submarine search, Pentagon spokesman John Kirby said on Twitter.

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We are deeply saddened by the news of Indonesia’s lost submarine, and our thoughts are with the Indonesian sailors and their families. At the invitation of the Indonesian government, we are sending airborne assets to assist in the search for the missing submarine.
— John Kirby (@PentagonPresSec) <a href="https://twitter.com/PentagonPresSec/status/1385360888815890437?ref_src=twsrc%5Etfw">April 22, 2021</a></blockquote>
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US&nbsp;Defence Secretary Lloyd Austin is scheduled to speak with Indonesian Defence Minister Prabowo Subianto on Friday "to convey our sorrow and to discuss how else the United States can be of assistance," Kirby said.

An aerial search found an oil spill near the submarine's dive location, and two navy vessels with sonar capability had been deployed to assist in the search, officials said.

The oil slick could indicate damage to the vessel or could be a signal from the crew, the navy said.

Chief of staff Yudo said authorities had found an item with "high magnetic force" floating at a depth of 50 to 100 metres.

Modernisation&nbsp;'imperative'

Indonesia has been seeking to modernise its defence capabilities but some of its equipment is old and there have been fatal accidents in recent years.

Subianto said it was "imperative" that Indonesia modernises its defence equipment faster, but did not suggest there had been problems with the missing vessel.

Navy spokesman Julius Widjojono told KompasTV that the diesel-powered submarine that runs on electric batteries while submerged could sustain a depth of 250-500 metres (820-1,640 ft).

"Anything more than that can be pretty fatal, dangerous," the spokesman told KompasTV.

The waters in the area are shallower than in other parts of the archipelago but can still reach depths of more than 1,500 metres.

The navy on Wednesday said a blackout may have occurred during static diving, causing a loss of control and preventing emergency procedures from being carried out if the vessel falls to a depth of 600-700 metres.

Military chief Hadi Tjahjanto on Wednesday told Reuters contact with the submarine was lost at 4:30 a.m. and a search was under way 60 miles (96 km) off Bali.

Indonesia in the past operated a fleet of 12 submarines bought from the Soviet Union to patrol the waters of the sprawling archipelago.

It now operates five,&nbsp;the two German-built Type 209 submarines and three newer South&nbsp;Korean vessels.

(With inputs from agencies)

Indonesia's president ordered an all-out effort to find a missing submarine in a race against time to save the 53 crew, whose oxygen supply defence chiefs said would last only until Saturday.

Indonesia's president ordered an all-out effort to find a missing submarine in a race against time to save the 53 crew, whose oxygen supply defence chiefs said would last only until Saturday. The crew on the KRI Nanggala 402 could have enough oxygen until early Saturday, but time was quickly running out as rescuers scoured the coast off holiday island Bali where it disappeared. "There's time until Saturday around 3:00 am. Let's hope we can find them before then," Navy Chief of Staff Yudo Margono told reporters. However, defence analysts have warned that the vessel could have already broken into pieces if it has sunk to depths believed to be as much as 700 metres (2,300 feet) -- well below what it was built to withstand. Indonesia sent a helicopter and five ships to search waters north of the holiday island of Bali but found no signs of the KRI Nanggala-402, which went missing early on Wednesday during a torpedo drill. "I have ordered the military chief, navy chief of staff, the search and rescue agency and other instances to deploy all the forces and the most optimal efforts to find and rescue the submarine crew," President Joko Widodo said on Thursday. "The main priority is the safety of the 53 crew members." Yudo Margono, the navy chief of staff, said the search was being aided by calm conditions but the crew's air supply would last only until Saturday.. "Hopefully before they can be found, the oxygen will be enough," he told a news conference in Bali. The vessel had been cleared for use and was in good condition, he added. The 1,395-tonne vessel was built in Germany in 1977, according to the defence ministry, and joined the Indonesian fleet in 1981. It underwent a two-year refit in South Korea that was completed in 2012. Indonesia said several countries had responded to requests for assistance, with Malaysia and Singapore sending ships and Australia offering "help in any way we can". The US Defence Department is sending "airborne assets" to assist in the submarine search, Pentagon spokesman John Kirby said on Twitter. We are deeply saddened by the news of Indonesia’s lost submarine, and our thoughts are with the Indonesian sailors and their families. At the invitation of the Indonesian government, we are sending airborne assets to assist in the search for the missing submarine. — John Kirby (@PentagonPresSec) April 22, 2021 × US Defence Secretary Lloyd Austin is scheduled to speak with Indonesian Defence Minister Prabowo Subianto on Friday "to convey our sorrow and to discuss how else the United States can be of assistance," Kirby said. An aerial search found an oil spill near the submarine's dive location, and two navy vessels with sonar capability had been deployed to assist in the search, officials said. The oil slick could indicate damage to the vessel or could be a signal from the crew, the navy said. Chief of staff Yudo said authorities had found an item with "high magnetic force" floating at a depth of 50 to 100 metres. Modernisation 'imperative' Indonesia has been seeking to modernise its defence capabilities but some of its equipment is old and there have been fatal accidents in recent years. Subianto said it was "imperative" that Indonesia modernises its defence equipment faster, but did not suggest there had been problems with the missing vessel. Navy spokesman Julius Widjojono told KompasTV that the diesel-powered submarine that runs on electric batteries while submerged could sustain a depth of 250-500 metres (820-1,640 ft). "Anything more than that can be pretty fatal, dangerous," the spokesman told KompasTV. The waters in the area are shallower than in other parts of the archipelago but can still reach depths of more than 1,500 metres. The navy on Wednesday said a blackout may have occurred during static diving, causing a loss of control and preventing emergency procedures from being carried out if the vessel falls to a depth of 600-700 metres. Military chief Hadi Tjahjanto on Wednesday told Reuters contact with the submarine was lost at 4:30 a.m. and a search was under way 60 miles (96 km) off Bali. Indonesia in the past operated a fleet of 12 submarines bought from the Soviet Union to patrol the waters of the sprawling archipelago. It now operates five, the two German-built Type 209 submarines and three newer South Korean vessels. (With inputs from agencies)

Indonesian president orders all-out effort to find submarine as oxygen runs low