"Potsdam" was subsequently used as an accommodation ship at Gdynia, Poland. She was subsequently used as a troopship serving Norwegian and Baltic ports. She participated in the Evacuation of East Prussia. She was seized on 13 May 1945 at Flensburg and was passed to the Ministry of War Transport. "Potsdam" was renamed "Empire Jewel". She arrived at Kiel on 19 June and an armed guard was posted on board to stop the Germans using her to block the Kaiser Wilhelm Kanal. She then sailed to Brunsbüttel where the armed guard left. After three weeks with an all-German crew on board, she sailed on 20 July for Methil, Fife, United Kingdom.