Mar del Plata — A multinational armada of aircraft and vessels battled high winds and raging seas Sunday as they intensified their search for a missing Argentinian submarine, after apparent attempted distress calls raised hopes the 44 crew members may still be alive. There has been no contact with the ARA San Juan, a German-built diesel-electric submarine, since early on Wednesday. An air and sea search is under way with help from countries including Brazil, Britain, Chile, the US and Uruguay. Hopes of finding survivors were revived when the navy said on Saturday that its bases had received seven satellite calls attributed to the submersible. The signals were received at 10.52am and 3.42pm local time, but they did not lock in, thus preventing a full connection. However, the navy was unable to confirm that those calls originated from the submarine. "The communications are so short and the signal so low," Argentinian navy spokesperson Enrique Balbi said, later adding that the military...

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