The warships included KRI Bontang, KRI Oswald Siahaan, KRI Rimau, KRI Bawean, KRI Rigel-933, which located the missing submarine using a multi-beam sonar and magnometer.
Not only warships, but the Indonesian Navy's Marine SAR command post for Nanggala-402 at Tanjungwangi Port in Banyuwangi district, East Java, and the Taftib marine battalion in Surabaya also hoisted the Red and White flag at half-mast.
Earlier, in Jakarta, House of Representatives (DPR) speaker Puan Maharani had made an earnest request to lawmakers to fly the national flag at half-staff at their residences as a mark of respect for the 53 submariners who died on duty.
Maharani also ordered the hoisting of the national flag at half-staff at the parliament building to honor the sailors who were on board KRI Nanggala-402 when itsank in the waters north of Bali Island on April 21, 2021.
Contact with the German-made submarine was lost while it was preparing for a torpedo drill.
Indonesian Navy’s Chief of Staff, Admiral Yudo Margono, confirmed that the submarine had sunk after several of its components were retrieved during the search mission.