Greek steamship Kosti was self responsible for sinking according to a report of the American Naval Attaché at Berlin, Germany Nr. R562 dated 15 September 1939

Kosti safe in harbour. Dutch newspaper Het Volk dated 29 September 1939

Diary note dated Wednesday 6 September 1939. An item reported that the German Navy Department claimed that the Greek steamship Kosti received the correct information from the German patrol boat how to steer safely throurh the minefield but after a short while suddenly turned and struck a mine.(1)

Note

1. The Dutch newspaper Het Volk dated 29 September 1939 reported that sunk in the Southern entrance to the Sont, salvaged by a Danish salvage vessel and towed to Copenhagen. The Algemeen Handelsblad dated 7 September 1939 reported that she was underway from Leningrad, Russia towards Antwerp, Belgium when she sunk. Her crew was saved by the British ss Poseidon and landed at Malmö, Sweden.

Source

Source

National Archives. FDR Presidential Library&Museum Roosevelt PSFC000175. War diary Naval Attaché Berlin, volume 1 (1 September 1939-26 May 1940)