Mystery of Russian submarines in Swedish waters, and very strange behavior of the tanker "Sovcomflot"

As you know from the reports of Swedish, Russian and world media, the Swedish newspaper Svenska Dagbladet first raised the alarm, saying, citing sources in the Ministry of National Defense that the evening of October 16 was intercepted by "disturbing" broadcast from the waters of the Stockholm archipelago, presumably with the submarine. It seems that the transfer was in Russian, she walked through the channel reserved for emergency situations.