Researchers have discovered the lost warship USS Indianapolis, 72 years after the cruiser was torpedoed by a Japanese submarine.
The wreckage was found about three-and-a-half miles below the Philippine Sea, according to Microsoft co-founder Paul Allen, who led the team searching for the ship.
The ship was hit in the final days of World War II after completing a secret mission to deliver parts of the atomic bomb used in Hiroshima.
The vessel sank in just 12 minutes, meaning it was unable to send a distress signal or deploy life-saving equipment.
Some 800 of the ship’s 1,196 crew survived the attack, but only 316 ultimately lived after enduring several days in shark-infested waters. Of those survivors, 22 are still alive today.
“To be able to honour the brave men of the USS Indianapolis and their families through the discovery of a ship that played such a significant role in ending World War II is truly humbling,” said Mr Allen.
“As Americans, we all owe a debt of gratitude to the crew for their courage, persistence and sacrifice in the face of horrendous circumstances.
“While our search for the rest of the wreckage will continue, I hope everyone connected to this historic ship will feel some measure of closure at this discovery so long in coming.”
Allen posted several photos of the wreckage on his Twitter account, including images of the ship’s anchor and bell.
Before it was struck the USS Indianapolis was advancing towards the Philippines to deliver atomic bomb components to Tinian island.
But four days after completing that mission, on July 30, 1945, it was spotted by a Japanese submarine that fired six torpedoes.
The Indianapolis burst into flames when one hit a magazine near the fuel bunker and another struck the ship’s bow.
The elusive USS Indianapolis
Others have searched for the Indianapolis in the past, but the wreckage location long eluded researchers.
But last year Richard Hulver, a historian with the Naval History and Heritage Command, identified a naval landing craft that had documented a sighting of the vessel hours before it was hit.
The research team then developed an estimated position, which covered a 600 square miles of open ocean.
The Navy called the ship’s discovery “significant” given the “depth of the water in which the ship was lost”.
Allen recently acquired and retrofitted the 250-foot R/V Petrel research vessel, which has equipment capable of diving 6,000 metres deep.
His team is currently surveying the full site and plans to give a live tour of the wreckage in the coming weeks. Since the sunken ship is a war grave, it is protected by US law from being disturbed.
The search vessel’s crew has been working in collaboration with Navy authorities and is developing plans to honour survivors still living as well as the families of the deceased.
“Even in the worst defeats and disasters there is valour and sacrifice that deserves to never be forgotten,” said Sam Cox, the Naval history command’s director.