File picture released by Telam showing the ARA San Juan submarine being delivered to the Argentine Navy after being repaired at the Argentine Naval Industrial Complex (CINAR) in Buenos Aires, on May 23, 2014. The Argentine submarine is still missing in Argentine waters on November 17, 2017, after it lost communication more than 48 hours ago. / AFP PHOTO / TELAM / ALEJANDRO MORTIZ / Argentina OUT (Photo credit should read ALEJANDRO MORTIZ/AFP/Getty Images)

The U.S. Navy is sending a second plane to search for a missing Argentinian submarine—after failed satellite calls likely from the vessel raised hopes that its 44 crew members remain alive.
Argentina’s navy said it detected seven brief satellite calls late Saturday that officials believe may have come from the ARA San Juan, which has been missing since last Wednesday.
File picture released by Telam showing the ARA San Juan submarine being delivered to the Argentine Navy after being repaired at the Argentine Naval Industrial Complex (CINAR) in Buenos Aires, on May 23, 2014. ALEJANDRO MORTIZ/AFP/Getty Images
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The communication attempts “indicate that the crew is trying to re-establish contact, so we are working to locate the source of the emissions,” the navy said on its Twitter account. “The calls of a short …
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