UNDATED PHOTO. AP PROVIDES ACCESS TO THIS PUBLICLY DISTRIBUTED HANDOUT PHOTO PROVIDED BY THE ARGENTINA NAVY; MANDATORY CREDIT
This undated photo provided by the Argentina Navy shows an ARA San Juan, a German-built diesel-electric vessel, near Buenos Aires, Argentina. Argentina's Navy said Friday, Nov. 17, 2017, it has lost contact with its ARA San Juan submarine off the country's southern coast. (Argentina Navy via AP )