Watch the historic moment the sea drone takes down an aerial target. DRAMATIC footage shows the moment Ukraine claimed the historic downing of a Russian M-8 military helicopter off the coast of occupied Crimea by a missile-firing sea drone. Kyiv's military intelligence announced the strike in the Black Sea with a Magura V5 and included a clip of the historic moment. In the black-and-white footage taken from the sea drone, bursts of water can be seen around the drone launching into the air as Vladimir Putin's chopper attacked. Viewers can quickly spot the Russian aircraft in the top right-hand corner...