Russian President Vladimir Putin has threatened to strike Ukraine again with a new nuclear-capable ballistic missile following Moscow’s latest widespread attack on critical energy infrastructure.

Russian President Vladimir Putin defended Russia's use of Oreshnik intermediate range missile and claiming that NATO has no way to intercept it.

More than a million households in Ukraine were left without power after a “massive enemy attack” overnight by Russia, targeting critical energy infrastructure facilities, CNN reported. Russian President Vladimir Putin claimed on Thursday that the air assault was in response to Ukrainian strikes in Russian territory using US-made ATACMS missiles.