Vladimir Putin test-fired the “Oreshnik”, the Russian word for hazelnut tree, for the first time in combat on Thursday against the Ukrainian city of Dnipro. He later boasted that it had been designed for a “decisive” strike on Britain – and added a chilling warning.

Russia will continue testing and start mass producing the new "Oreshnik" missile that was used to target Dnipro, Ukraine, Russian President Vladimir Putin said.