|Date of attack||7 Apr 1944||Nationality: Soviet|
|Fate||Sunk by U-20 (Karl Grafen)|
|Position||42° 11'N, 41° 38'E - Grid CS 1676|
|Complement||? men (? dead and ? survivors).|
|Route||Hopi - Poti|
|Notes on event|
At 15.15 hours on 7 April 1944 the Rion struck a mine laid on 27 February by U-20 off Poti and sank.
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