MOSCOW - Russia has started underwater trials of its mysterious Poseidon underwater nuclear drone, sources say, an state-of-the-art weapon that Russian President Vladimir Putin says is invincible.
Testing of the strategic weapon’s nuclear propulsion system was underway in an undisclosed location under Russia’s territorial waters, a source in the Russian military industry told state news agency TASS on Tuesday.
"In the sea area protected from a potential enemy’s reconnaissance means, the underwater trials of the nuclear propulsion unit of the Poseidon drone are underway," the source added.
The reactor installed in the hull of the nuclear-tipped was undergoing experimental test and more work needed to be done before full-fledged sea trials at this stage, the source noted.