Saddened and angered by evidence that the vessel may have exploded, relatives of the crew onboard a missing Argentine submarine are losing hope that their loved ones will be found alive. Hope is fading among relatives of the 44 crew members aboard a missing Argentine submarine. After days of waiting for news at the Mar del Plata naval base, loved ones have gone home. The Navy said a sound "consistent with an explosion" was detected in the South Atlantic Ocean around the same time the vessel sent its last signal on November 15. Many family members are accusing the Navy of sending their loved ones out in vessel, that they say was over 30-years old and was likely not properly maintained. The submarine was en route to Mar del Plata when it reported an electrical malfunction shortly before disappearing last week.