Ukraine's domestic security service, the SBU, said it struck a Russian submarine in the Black Sea port of Novorossiysk, Russia, disabling it, in a first attack of its kind. Russia acknowledged the attack but said no ships or submarines were damaged. Read more: https://cnn.it/4pFhm4R | CNN

16K views · 1K reactions | Vietnam receives 6th Russia-made Kilo-class #submarine. The Kilo-class is known as one of the most advanced diesel submarines in the world. | China Xinhua News | Facebook

'Russia's diesel-electric submarine erupts in explosion'. Ukraine claims world's first underwater drone attack. Ukraine's State Security Service releases video. Video shows the submarine docked at Novorossiysk. Underwater drone was able to navigate a packed harbour? Russia, meanwhile, denies any damage caused by the attack. Russia: 'Not a single ship damaged as a result of sabotage'. Russia's diesel-electric submarines are extremely lethal. Russia's improved kilo-class subs carry Kalibr missiles

224K views · 2.9K reactions | Typhoon Class Submarine vs Ohio Class Submarine This video you will see a comparison between two submarines one is Typhoon Class Submarine and another one is Ohio Class Submarine Content of this video: 00:30 Operators 00:45 Type 01:10 In Service 01:40 Submerged Displacement 02:12 Test Depth #Submarine #Navy #Russia #UnitedStates | Defence Learning | Facebook