Vladimir Putin ordered the mass production of the Zircon missiles following successful testing.
The UK Sun reported:
MASS production of Russia’s terrifying Zircon hypersonic missile has begun, as tensions with the West mount.
The Kremlin boasts that the 6670mph weapon – which carries a conventional or nuclear warhead – is “unstoppable”.
Ukraine’s spy chiefs said they believe a full-scale invasion is planned in the New Year.
The go-ahead for full-scale production of Zircon at a top-secret plant near Moscow follows recent successful tests of the missile.
Most recently, there was a successful test of the hypersonic missile from a frigate in the White Sea on 18 November.