Several British submarine successes were officially reported in Tuesday's papers.
In the Sea of Marmora one of the British submarines torpedoed a large steamer off Mudania Pier and a small steamer, probably a gunboat, close to Karabogha Bay. Lighters were attacked alongside the arsenal at Constantinople, the powder mills at Zeitunlik were fired on, the railway cutting near Kara Burna was bombarded, and a troop train damaged. The Admiralty also reports the return of a British submarine after sinking a German destroyer near the German coast, and an official Petrograd eommunigud states that a British submarine has sunk a large transport in the Baltic conveying a German regiment to reinforce their army in Courland.