An Indonesian military submarine has been found on the seafloor, with authorities confirming all 53 crew onboard have died.

This follows the vessel being missing since last week – and debris from the sub being found floating in the Bali Straight, two miles from its last know location. 

One of Indonesia’s warships used advanced sonar technology to scan the seabed and find the wreckage. 

The country’s Air Chief Marshal says they “found and confirmed an image of the submarine’s parts” 

He went onto say that “based on authentic proof he declares that the Nanggala submarine sank and all of the crew died”. 

Air Chief Marshal Tjahjanto said the equipment had captured images of the Nanggala wreck including its rear vertical steering wheel, anchor and the dive rudder..

“Based on this authentic evidence, we can conclude that the Nanggala 402 has sunk and that all the crew members are dead,” he said.

“Due to that, with great sadness, as military commander I declare the 53 crew members of Nanggala are dead. The best soldiers have died while carrying out their duties in waters north of Bali.

“On behalf of the entire military family, I convey my deepest condolences to the families of the fallen soldiers.”

The Australian Prime Minister has also paid tribute to those who perished saying the incident is “a tragic reminder of the ultimate sacrifice”.