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Authorities last had contact with the German-built, diesel-electric sub on Wednesday as it was on a voyage from the extreme southern port of Ushuaia to Mar del Plata.<\/p>\n\n\n\n
Argentine President Mauricio Macri said in a tweet that the country will use \u201call resources national and international that are necessary to find the submarine.\u201d<\/p>\n\n\n\n
Pledges of help came from Chile, Uruguay, Peru and Brazil, as well as the United States, which sent a NASA scientific aircraft and a Navy plane. Britain was sending a polar exploration vessel, the HMS Protector, which British officials said should arrive Sunday.<\/p>\n\n\n\n
The U.S. Navy ordered its Undersea Rescue Command based in San Diego, California, to deploy to Argentina to support the search for the submarine. The command includes a remotely operated vehicle and vessels capable of rescuing people from bottomed submarines.<\/p>\n\n\n\n
Adm. Gabriel Gonzalez, chief of the Mar del Plata Naval Base, said they are coordinating \u201cwith units from the United Kingdom and the United States.\u201d Britain and Argentina fought a war in 1982 over the Falklands Islands, which are called the Malvinas in Argentina.<\/p>\n\n\n\n
Relatives of the crew members gathered at the Mar del Plata Naval Base in the hopes of hearing news about their loved ones.<\/p>\n\n\n\n
\u201cWe feel anguish. We are reserved but will not lose our hope that they will return,\u201d Marcela Moyano, wife of machinist Hernan Rodriguez, told television network TN.<\/p>\n\n\n\n
She said she spoke with her husband when the submarine departed and is still sending him WhatsApp messages, though he has not responded.<\/p>\n\n\n\n
From the Vatican, Argentine Pope Francis said he was making \u201cfervent prayers\u201d for the crew.<\/p>\n\n\n\n