This was reported in Twitter by the Navy of Argentina.

The official representative of the Argentine fleet, Enrique Balbie, is not currently considering a version about the submarine's flooding, most likely the submarine went beyond the limits of the location or too deeply went under the floor, because of what several days under the row could not establish a connection. The last time with the captain of the submarine was on Wednesday.

The team has enough food to spend several days at sea while other vessels will look for a lost submarine.

As reported in "URA-Inform", a few months ago in Denmark, sank the largest private submarine.