President Vladimir Putin said Friday that Russia will continue to test and start mass-producing the hypersonic ballistic missile that it fired at Ukraine Thursday.

The Kremlin says that the firing of a hypersonic missile and an address by Vladimir Putin are clear messages to the West - describing the move to let Ukraine use their weapons to strike Russia as "reckless".

Russia fired a hypersonic intermediate-range ballistic missile at the Ukrainian city of Dnipro on Thursday in response to the U.S. and UK's allowing Kyiv to strike Russian territory with advanced Western weapons,