A spokesperson of the Argentine Navy said that it was still «not possible to reliably detect the San Juan submarine,» during a press conference in Buenos Aires on Friday. Navy spokesperson Enrique Balbi said that the ARA San Juan submarine, missing for nine days, first would have to be localised in order for its depth to be determined. Balbi confirmed the arrival of a Russian Navy Antonov... Еще exploration aircraft to assist with search operations. He said that the Navy was not «infallible,» and that in case of errors in the search it would not hesitate in apologising to crew family members. He also commented on the recent explosion detected in the search area, saying: «we deduce, without discarding anything — for this reason the search efforts continue in other areas — that it could be the submarine.» The ARA San Juan went missing on Wednesday, November 16 with a crew of 44, shortly after reporting an electrical malfunction. It was 480km (380 miles) off the coast, en route from Ushuaia to its base in Mar del Plata.