Moroccan grain loaded ships bound for France cruising via Spanish territorial waters according to the Kriegsnachrichten of the Chef des Admiralstabes der Marine dated Berlin 28 August 1917

An item reported that the Moroccan harvest, which turned out well for grain, would be shipped as soon as possible to France. To minimize the submarine threat were the Spanish territorial waters to be used.

Source

Bundesarchiv RM-40-622