This blockade was lifted by an invading Russian army on 18 June 1758, but von Rosen had grown tired of his thankless task and handed command over to Gustav David Hamilton.
Den 18. juni 1758 ophævedes blokaden takket være en russisk hærs fremtrængen, men von Rosen var da så træt af sin utaknemmelige opgave, at ledelsesansvaret overgik til Gustaf David Hamilton.