The area of interest is located about 40 kilometers (about 25 miles) north of Bali, where oil was found on the surface of the water near the dive site and where an object likely from the submarine was detected, according to to Maj. Gen. Achmad Riad, the head of the central information unit of the army.
A warship detected a “strong magnetic resonance” object at depths of 50 to 100 meters (164 to 328 feet), Riyadh said in a news conference on Friday, and the navy expects its warship , Riguel, reach the research area on Friday. .
The Riguel is equipped with a high-tech sonar, which uses sound waves to locate objects, and the navy hopes to be able to find the KRI Nanggala-402, a German-made submarine that lost contact during a military exercise in the Strait of Bali early Wednesday morning.
Other ships with high-tech capabilities also joined the search efforts on Friday, creating a search team consisting of 21 Indonesian warships, a submarine, and other ships from Indonesia’s police and rescue department.
Two Australian warships also joined the search efforts.
“The HMA Ballarat and Sirius ships, both currently at sea on separate regional deployments, are reaching full speed for the search area,” the Australian Department of Defense said Friday in a news release.
Rear Adm. Mark Hammond, of the Australian task force, added that his thoughts were with the KRI Nanggala submarines, their families and the Indonesian people.
“As always, we are ready to assist our fellow sailors in the Indonesian Navy,” he said.
The United States is sending planes to assist in the search for the missing Indonesian submarine, Pentagon press secretary John Kirby tweeted Thursday.
Three C-17 aircraft are expected to leave Dover Air Force Base Friday with jet skis and dive gear for search and rescue, a defense official told CNN.
The equipment will assist with search and rescue activities and, if necessary, assist in a recovery mission.
“We are deeply saddened by the news of the lost submarine in Indonesia, and our thoughts go out to the Indonesian sailors and their families,” Kirby tweeted.
“At the invitation of the Indonesian government, we are sending airborne vehicles to assist in the search for the missing submarine.”
Hopes that vanish
Answering questions about the submarine’s condition before participating in the war simulation, Margono said KRI Nanggala-402 and all of its crew are well prepared. It last docked for maintenance in 2020 in Surabaya, a port city on the island of Java, he said.
Margono said there are two possibilities to explain the oil spill sighted on the surface: the submarine’s tank could leak because it dived too deep, or the submarine released fluid on board in an attempt to surface.
Spokesman for the Indonesian Navy First Adm. Julius Widjojono said the submarine has the ability to dive up to 500 meters (about 1,640 feet) below sea level, but authorities estimate it went from 100 meters to 200 meters deeper.
CNN’s Barbara Starr and Ellie Kaufman contributed to this report.