The Argentine military submarine ARA San Juan has been missing for approximately three days. Today there were reports of seven attempted transmissions from frequencies that appear to emanate from the sub. However, they were only a few seconds in duration and no direct communication was possible.
The Argentine’s are asking for help. The U.S. Navy has dispatched a P8-A Poseidon search aircraft and NASA has changed mission for a close proximity P-3 Orion aircraft that was already in the vicinity.

(CNN) The crew of a missing Argentine military submarine tried contacting naval bases seven times, Argentina’s Defense Ministry said. The calls were made on Saturday to different bases between 10:52 a.m. and 3:42 p.m. and ranged from four to 36 seconds long, the ministry said in a statement to CNN en Español. No communication connection was made.
The navy said the military is working with a US-based company that specializes in satellite communication to determine the location of the submarine, which has been missing for more than three days.

