A member of Indonesian Navy personnel walks past a map of the searching area for the submarine KRI Nanggala-402, which lost contact while drilling torpedo shooting on Wednesday, at I Gusti Ngurah Rai airport in Bali, Indonesia, April 23, 2021 in this photo taken by Antara Foto. Antara Foto/Fikri Yusuf/ via REUTERS
Indonesian Navy's KRI Singa-651 leaves the Tanjung Wangi port as the search continues for the missing KRI Nanggala-402 submarine in Banyuwangi, East Java Province Indonesia, April 24, 2021.
Image for illustrative purposes. Indonesian Navy's submarine KRI Nanggala-402 sails in Surabaya, East Java province, Indonesia, September 25, 2014. Picture taken September 25, 2014. M Risyal Hidayat/Antara Foto/via REUTERS
U.S. Navy P-8 Poseidon aircraft personnel prepare for the search of the missing Indonesian Navy KRI Nanggala-402 submarine, at I Gusti Ngurah Rai Airport in Bali, Indonesia April 24, 2021. Antara Foto/Fikri Yusuf/via REUTERS
An Indonesian Navy personnel carries the debris believed to be from the missing Indonesian Navy KRI Nanggala-402 submarine, displayed during a media conference at I Gusti Ngurah Rai Airport in Bali, Indonesia April 24, 2021. Antara Foto/Fikri Yusuf/via REUTERS
People holding a placard and flowers bow as they pray for the crew of submarine KRI Nanggala-402 which has sunk at the north of Bali sea, during a vigil in Solo, Central Java province, Indonesia, April 25, 2021 in this photo taken by Antara Foto. Antara Foto/Maulana Surya/ via REUTERS
People throw flowers and petals with names of the sunken KRI Nanggala-402 submarine crew members from the boat during a prayer at the sea near Labuhan Lalang, Bali, Indonesia April 26, 2021, in this photo taken by Antara Foto/Fikri Yusuf/via Reuters.
Muslim people pray for the sunken Indonesian Navy KRI Nanggala-402 submarine crew members in Ciamis, West Java Province, Indonesia April 26, 2021, in this photo taken by Antara Foto/Adeng Bustomi/via Reuters.
The military personnel display a video showing what is believed to be the sunken Indonesian Navy KRI Nanggala-402 submarine during a media conference at I Gusti Ngurah Rai Airport in Bali, Indonesia, April 25, 2021.
People throw flowers and petals with names of the sunken KRI Nanggala-402 submarine crew members from the boat during a prayer at the sea near Labuhan Lalang, Bali, Indonesia April 26, 2021, in this photo taken by Antara Foto/Fikri Yusuf/via Reuters.
An Indonesia Air Force plane arrives at Banyuwangi Airport to deliver equipment as the search continues for the missing KRI Nanggala-402 submarine, in Banyuwangi, East Java Province, Indonesia, April 23, 2021.
Debris from the missing Indonesian Navy KRI Nanggala-402 submarine are displayed during a media conference at Ngurah Rai Airport in Bali, Indonesia, April 24, 2021.
Muslim people pray for the sunken Indonesian Navy KRI Nanggala-402 submarine crew members at a campus in Surabaya, East Java Province, Indonesia April 26, 2021, in this photo taken by Antara Foto/Moch Asim/via Reuters.
An Indonesian Air Force plane arrives at Banyuwangi Airport to deliver equipment as the search continues for the missing KRI Nanggala-402 submarine, in Banyuwangi, East Java Province, Indonesia, April 23, 2021.
The family of the sunken KRI Nanggala-402 submarine crew members react as they hug at Koarmada II fleet office in Surabaya, East Java Province, Indonesia April 25 2021, in this photo taken by Antara Foto/Didik Suhartono/via REUTERS
A military personnel holds an escape suit believed to be from the sunken Indonesian Navy KRI Nanggala-402 submarine during a media conference at I Gusti Ngurah Rai Airport in Bali, Indonesia, April 25, 2021.
Hindus people pray for the sunken KRI Nanggala-402 submarine crew members in Buleleng, Bali, Indonesia April 26, 2021, in this photo taken by Antara Foto/Fikri Yusuf/via Reuters.
Muslim people pray for the sunken Indonesian Navy KRI Nanggala-402 submarine crew members in Ciamis, West Java Province, Indonesia April 26, 2021, in this photo taken by Antara Foto/Adeng Bustomi/via Reuters.
Flowers and petals with names of the sunken KRI Nanggala-402 submarine crew members are seen at the sea near Labuhan Lalang, Bali, Indonesia April 26, 2021, in this photo taken by Antara Foto/Fikri Yusuf/via Reuters.
A monk puts flowers during a prayer for the missing Indonesian Navy KRI Nanggala-402 submarine in Surabaya, East Java Province, Indonesia April 25 2021, in this photo taken by Antara Foto/Didik Suhartono/via Reuters.
Imam Yoga, 26-year-old brother-in-law of Pandu Yudha Kusuma, 23, one of the crew members of the sunken KRI Nanggala-402 submarine, shows a photograph during an interview at his parents' house in Banyuwangi, East Java Province, Indonesia, April 26, 2021.
Indonesian Navy ships are seen at the Tanjung Wangi port as the search continues for the sunken KRI Nanggala-402 submarine in Banyuwangi, East Java Province, Indonesia April 26, 2021, in this photo taken by Antara Foto/Zabur Karuru/via Reuters. Image for illustrative purposes.
Indonesian Military chief Hadi Tjahjanto delivers his speech as the debris believed to be from the missing Indonesian Navy KRI Nanggala-402 submarine is displayed during a media conference at Ngurah Rai Airport in Bali, Indonesia, April 24, 2021.
Indonesia mourns sunken submarine crew