Sinking of Szent István
10 June 1918, Off Premuda island, Adriatic
Italian victory
Two Austro-Hungarian dreadnoughts were steaming south at night to join an attack on the Otranto barrage. Two small Italian motor torpedo boats on patrol found them. Luigi Rizzo's MAS-15 put two torpedoes into Szent István, which capsized about three hours later, filmed from a nearby ship. The attack on the barrage was called off.
Read more on WikipediaRegia Marina (Italy)
2 ships, none lost
Austro-Hungarian Navy
2+ ships, 1 lost
Map
Austro-Hungarian dreadnoughts sail south 9–10 June 1918