The convoy consisted two German vessels, SS Duisburg 7,889 gross register tonnage (GRT) and SS San Marco (3,113 GRT) and the Italian MV Maria (6,339 GRT), SS Sagitta (5,153 GRT) and MV Rina Corrado (5,180 GRT), carrying 389 vehicles, 34473 long tons of munitions, fuel in barrels and troops for the Italian and German forces in Libya.