German minesweepers R 30 and RA 52, 54, 56 leaving Mariupol,Ukraine according to the German War Diary of Admiral Black Sea dated 1 September 1943

An item reported the departure from Mariupol,Ukraine at 06:10 o’clock by the German minesweepers R 30 and the RA 52,54 and 56 for mine sweeping purposes.

Source

German War Diary of Admiral, Black Sea 1-30 September 1943. Published by Department of the Navy. Washington, 1955.