In this handout video grab released by Russian Defence Ministry, tests of Russia's Poseidon nuclear-powered underwater drone are shown at an undisclosed location, Russia. Editorial use only, no archive, no commercial use.

20.02.2019#5787926

In this handout video grab released by Russian Defence Ministry, tests of Russia's Poseidon nuclear-powered underwater drone are shown at an undisclosed location, Russia. Editorial use only, no archive, no commercial use.

20.02.2019#5787921

In this handout video grab released by Russian Defence Ministry, officers sit in the main command post during the tests of Russia's Poseidon nuclear-powered underwater drone at an undisclosed location, Russia. Editorial use only, no archive, no commercial use.

20.02.2019#5787910