For sinking a ship in Nazi controlled waters?
The last thing you could expect to see in a Black Sea in 1942 is a Jewish refugee ship. Any non-Soviet shipping were basically Turks bringing supplies to their Nazi buddies.
The sub could see that it was filled with people, not soldiers but true to style, they torpedoed it anyway.
Another tragic ship story. My late friend Bill Steiner(who lived in Vienna, fought the Nazi thugs in the streets and eventually came to America, only to be sent back c/o the US Army to Europe to fight the Germans), got a ticket on a US-bound ship out of Marseilles ?, and gave it to his sister so that she could escape.
The ship landed and got stuck in Yugoslavia where all 800+ Jews passengers, including his sister, were executed by the Nazis.
He later went to Palestine and served in the new Israeli army, the Haganah in the fight for the creation of Israel.