Ukraine shows off its next-generation 20-foot-long underwater drone that will sink Russian warships from below the surface

• Ukraine has unveiled a new 20-foot-long underwater drone to attack Russian warships.
• Until now, Ukraine has been attacking Russia's Black Sea Fleet mainly using surface naval drones.
• Ukraine has also established its first naval drone brigade.

Ukraine has unveiled a 20-foot-long underwater drone to attack Russian warships from under the sea, reports say.

The vessel, called Marichka, could give Ukraine a new dimension to its attacks on Putin's Black Sea fleet, as until now, attacks have been mainly carried out by surface naval drones.