Russia’s widespread overnight attack targeting critical energy infrastructure facilities in Ukraine was a response to strikes on Russian territory using US-made ATACMS missiles, President Vladimir Putin said Thursday.

Russia may use its new Oreshnik hypersonic missile to attack "decision-making centres" in Kyiv in response to Ukraine's firing of Western missiles at Russian territory, President Vladimir Putin said on Thursday.

Russian attacks have not so far struck government buildings in the Ukrainian capital. Air defences heavily protect Kyiv, but Putin says Russia’s Oreshnik hypersonic missile, which it fired for the first time at a Ukrainian city last week, is incapable of being intercepted.