India, Dec. 16 -- In a first, Ukraine has carried out an attack on a Russian submarine using underwater drones. As per a statement issued by Ukraine's Security Service SBU, it used 'Sea Baby' naval drones to knock out the Russian vessel.

Taking to Telegram, the SBU shared a video of the attack and stated that the drones hit a Varshavyanka-class submarine that carried four launchers for Kalibr cruise missiles, which Russia has used to strike Ukrainian cities and infrastructure.

"The ship suffered critical damage and was effectively out of service," the SBU wrote further on Telegram.

The Security Service further shared that the Russian vessel it hit is often known as the "black hole" due to its ability to absorb sound and remain undetect...