the flotilla made this turn, again without result and the three ships laid smoke screens to conceal their position. The two cruisers also turned north to chase the German ships. A running fight began in which Mauritius sustained a hit on her mess deck that did not cause any casualties and Diadem was struck on her boat deck by a shell six minutes later that killed one man and wounded three. The German destroyers were capable of making while Diadem had a maximum speed of and Mauritius . The German vessels gradually pulled ahead and came under the protection of shore batteries at about 2:00 am. The British ships broke off the pursuit and returned to Scapa Flow after these batteries fired on them. Aftermath Early in the morning of 28 January, the 4th Destroyer Flotilla resumed its journey south and put into Bergen. Z31 entered the docks to be repaired while Z34 and Z38 departed on the evening of 28 January. The two ships were attacked from the air the next day but did not suffer any damage and sheltered in a fjord south of Stavanger until dark. They put to sea again on the evening of 29 January and reached Kiel in Germany on 1 February. At Bergen, Z31 received initial repairs, which included removing the wreckage of her forward turret. She departed the town on 8 February bound for Horten. After arriving she received further repairs and had her anti-aircraft armament upgraded. Her forward turret was not replaced but a gun was mounted instead; this was intended to be a temporary measure but remained in place for the remainder of her career. After these repairs were completed, Z31 eventually reached Gotenhafen on 15 March. The last German destroyer remaining in northern Norwegian waters, Z33, sailed for Germany on 5 February 1945 but ran aground and suffered further damage in the Allied Black Friday air raid on the ninth of the month. Following repairs, she arrived at Swinemünde on 2 April. The British and German navies were dissatisfied with the results of the engagement on 28 January. The British were disappointed with the inconclusive result and Moore regretted his decision to not cancel the escort carrier operation so that destroyers could be attached to the cruiser force. Historians have judged that the combination of excellent visibility on the night of 27/28 January and the superior speed of the