Neutral merchant ships remain in Swedish docks due to threat of U-boat attack, Sweden.
Full titles read: "PERILS OF THE SEA"
Various shots of Swedish (neutral) merchant ships at anchor, they are staying in harbour due to U-boat threat from Germany. L/S of Two Polish submarines at anchor in Swedish harbour being guarded by Swedish troops. L/S of the crews of the Polish submarines being checked as they go to internment in Sweden. The commentator says that U-boats had escaped from Poland after the German invasion and had run out of fuel.
Original negative exists.