The action of 11–12 December 1917 was a German naval operation in the North Sea against convoys sailing on the Scandinavian convoy route from Norway to Lerwick (/ˈlɛrɪk/, "Lerrick") in the Shetland Islands during the First World War. Ships carrying coal from the loading port of Immingham on the Humber estuary were convoyed to Lerwick up the war channel, along the east coast of Northern England and Scotland, for dispatch in convoys to Scandinavian neutrals, along with ships carrying general cargo.