This move, enabled the Soviet Navy to avoid the mine field barrages in the Gulf of Finland that caused heavy losses in 1942 and prevented success in 1943.

[5] On 9 October, Soviet submarine S-13 damaged with gunfire the German fishing vessel Siegfried (563 GRT) north of Danzig Bay.

[8] On the same day, Soviet submarine Lembit torpedoed and sunk the German merchant Hilma Lau (2414 GRT) north-east of Bornholm.

[11] On 21 November, Soviet submarine L-21 after having laid a field of mines, attacked and sunk with torpedo the neutral Swedish passenger-ship Hansa (563 GRT) north-west of Halskuk.

[18] Between October and December 1944, the Soviet Navy employed also the three left submarines (L-3, L-21 and Lembit) capable of minelaying operations in offensive actions, laying 77 mines.