Mt 11
| Name | Mt 11 |
| Type | Minesweeping Boat |
| GRT | 29 tons |
| Country |  Russian |
| Built | 1917 |
| Builder | Botnia Yard, Abo |
| Operator | Imperial Russian Navy |
| History |
U-boat attacks on Minesweeping Boat Mt 11
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 7 Jul 1917 | UC 58 (Karl Vesper) | Sunk | Mined off Raumo |
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