Prime Minister Scott Morrison has offered his “deepest sympathies” to the Indonesian President over the loss of a navy submarine and the 53 lives on board.
The vessel was broken into three pieces at a depth of 850 metres which is well beyond its survivable limits.
“Deepest sympathies to President @jokowi & all our Indonesian friends on the loss of KRI Nanggala. A tragic reminder of the ultimate sacrifice our service people make for their country,” Mr Morrison said in a Twitter post.
“It was an honour to contribute to search efforts. Australia stands by you in your time of loss”.”
The submarine disappeared during exercises off the coast of Bali on Wednesday sparking a frantic operation to locate it.