Earlier in the Argentine media, there were reports that the noise could be knocking with metal objects on the inner hull of a submarine hull. However, the Navy refuted information that it was this noise that could be created by representatives of the crew of a submarine.
Meanwhile, it became known that the US Navy is deploying a full-scale operation in the southwestern Atlantic using deep-sea vehicles to search for the Argentinean submarine. On the eve of the first remotely controlled underwater unmanned vehicle dived. According to the latest data, a section of the seabed with an area of about 4 thousand square kilometers was investigated - this study did not give any results, and a submarine of the Argentine Navy has not yet been discovered. On it at the time of transition to the base fleet there were 44 crew members in Mar del Plata, including a female officer.