No sign of missing Argentine submarine till date.

There is no sign of the Argentine submarine lost in the South Atlantic since Nov. 15  despite a massive international search effort.

While families of the 44 crew members face the increasing likelihood that their loved ones will never return.

Today is the 10th day since the ARA San Juan submarine reported its last position off Argentina’s southern coast. Reports of a sound detected underwater near the last known position of the vessel suggest it might have imploded after reporting an electrical problem.

Navy spokesman Enrique Balbi said, “We are at a stage of hope and hopelessness at the same time.We will not speculate beyond the facts as we know them.”

He said 7 ships were braving 3-meter (3.28-yard) waves to map the ocean floor where the San Juan was most likely to be found.

The U.S. Navy said it had deployed unmanned underwater vehicles, or “mini-subs” equipped with sonar, to join the search. A Russian plane arrived in Argentina on Friday carrying search equipment capable of reaching 6,000 meters (20,000 feet) below the sea surface, Balbi said.

The search effort also includes ships and planes from Brazil, Chile, Great Britain and other countries.

The families have said they suspect the more than 30-year-old vessel was not properly maintained, a charge the government denies, and that the navy has been slow in sharing information with them.