> Concerns mounting Wednesday for the 44 crew members onboard the Argentine Navy's submarine, that vanished in the South Atlantic ocean one week ago. Reuters' Luke Cohen is in nearby Buenos Aires.>> In the worst case scenario, the submarine only has seven days worth of oxygen supply.
The spokesman for the Navy has said that in the absolute worst case scenario, where a submarine has sunk to the ocean floor or has otherwise not been able to rise close enough to the surface to be able to replenish its oxygen supply, it could be running out. That would put the lives of the 44 crew members at risk.
>> About 30 boats and planes from several countries, including the United States, have been searching for the ARA San Juan since it's last communication. When it reported an electrical problem about 300 miles off the coast of Argentina. Harsh winds and terroring waves have hampered the search. The submarine was enroute from Ushuaia, the southern most city in the world, to coastal city of Mar Del Plata, where several family members have gathered waiting for news.
They were visited Tuesday by Argentine President Mauricio Macri, many expressing their frustration with the governement's efforts. The ARA San Juan was launched in 1983, and underwent maintenance in 2008.