The ARA San Juan submarine was discovered by marine tracking contractor Ocean Infinity, 907 meters (2,975 feet) below the ocean surface. The vessel was found in an underwater canyon with its tail partially "imploded," Argentina's Defense Minister Carlos Aguad said.

Given the poor visibility at the site, the ministry said it only had preliminary information about the state of the submarine, which was scattered in pieces on the ocean floor.

Aguad could neither confirm nor deny if the vessel could be recovered, but said the government did "not have the means to extract the submarine."

The disappearance gripped the nation's attention as the government struggled to provide information about the tragedy. Relatives of the crew still have questions.

"We have found them," Jorge Villarreal, father of one crew member told local radio. "Now we are going to search for the truth. For us this is the start of a new chapter."

Aguad said: "Much of what happens from here will have to be resolved by the justice department. If there is someone responsible, they will be held responsible."

At the time of the disappearance, the Navy said water that had entered the submarine's snorkel caused its battery to short-circuit.

Naval officials said international organizations helping to search for the missing vessel a year ago detected a noise that could have been the submarine imploding, just two hours after its last contact.

The first anniversary of the submarine's disappearance was commemorated at the Mar del Plata naval base on Nov. 15, with President Mauricio Macri in attendance.

The crew had been ordered to return to Mar del Plata on the country's east coast. But the vessel was never heard from again.