Signals Detected From Missing Argentine Submarine as Foreign Navies Join Search<br />18, 2017<br />BUENOS AIRES — Argentina’s Defense Ministry said Saturday night<br />that it had detected seven communication attempts throughout the day from an Argentine Navy submarine with 44 crew members aboard that has been missing since Wednesday.<br />The Protector, a British ice patrol ship, was expected to arrive at the search area from the<br />Falkland Islands on Saturday afternoon, according to the British Embassy in Buenos Aires.<br />ing it to support a wide range of missions over large bodies of water, including subsurface search-and-rescue operations." A NASA research plane was sent late Thursday to assist in the search, the American Embassy in Buenos Aires said.<br />that state-of-the-art sensors and communication equipment, allow<br />A United States Navy aircraft, a NASA airplane and a British Royal Navy ice patrol<br />ship on Saturday joined the search for the submarine, the ARA San Juan.<br />international resources necessary to find the submarine ARA San Juan as soon as possible." Mr. Macri also said<br />his government was in touch with the family members of the crew. that committed to using all the national and<br />" — about 20 feet — "which makes it much more difficult." The Argentine Navy is "accepting all possible or necessary help" in order to "not discard any hypothesis," Captain Balbi said, noting<br />that search teams had scoured about half of the area where they believed the submarine could be. that Waves are of approximately six meters