Putin claims no other nation has such a missile.
Russian President Vladimir Putin has announced the creation and testing of a brand new nuclear-powered missile in Russia.
Read alsoTop U.S. nuclear commander: Russia 'only existential threat to country right now' – CNBC
"No one else has such a weapon," Putin added.
In addition, the Russian president announced the launch of tests of new Sarmat intercontinental ballistic missiles, which will replace the Soviet-designed Voevoda missiles produced in the Ukrainian city of Dnipro (the NATO reporting name SS-18 Satan).