Secundo
| Name | Secundo |
| Type | Steamer |
| GRT | 1,512 tons |
| Country |  Norwegian |
| Built | 1899 |
| Builder | Howaldtswerke, Kiel |
| Operator | A/S D/S Secundo (J. K. Haaland), Haugesund |
| History |
U-boat attacks on Steamer Secundo
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 20 Oct 1916 | UB 39 (Werner Fürbringer) | Sunk | Captured and sunk 25 miles N of Triagoz | 49° 11'N, 3° 54'W | Santander - Caen | iron ore | 0 |
Position of attack on Secundo
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