On 6 March, "Tirpitz", escorted by the destroyers Z25, Friedrich Ihn, Paul Jacobi and Hermann Schoemann, launched a raid on the British convoys to the Soviet Union. The Germans attempted to intercept convoys PQ-12 and QP-8, but the inclement weather prevented them from finding the convoys. A Soviet freighter that was sailing independently of the convoys was sunk by the destroyers. The British submarines Trident and Seawolf reported "Tirpitz". A Home Fleet squadron consisting of the battleships "King George V" and "Duke of York", the aircraft carrier "Victorious", the heavy cruiser "Berwick" and destroyers failed to find the Germans. "Victorious" launched a strike of twelve Fairey Albacore torpedo bombers, however the aircraft were repulsed without having scored any hits on the German ships. "Tirpitz" and the destroyers were back in port by 12 March. The close call prompted Hitler to mandate that "Tirpitz" was not to attack another convoy unless its escorting aircraft carrier had been sunk or disabled.