As its forces risk being routed in the south near the city of Kherson, Moscow has suggested that Kyiv could use such a blast on its own territory - without offering evidence. Foreign news reporter @MikeRDrummond Russian claims Ukraine could use a "dirty bomb" in the war have been branded "nuclear blackmail" and dismissed by the West. With its forces facing a string of battlefield defeats and a risk of being routed in the south, the Kremlin has pushed allegations that Kyiv could use such a blast on its own territory - without offering evidence. The UK, USA and France have rejected the claims as "transparently false" and said the world would see through any attempt to use it as a pretext for escalation. Russia facing 'inevitable defeat' in largest city it holds - Ukraine war latest updates It comes as Ukrainians are being asked to conserve electricity as the country's power networks continue to be hammered by Russian missiles and drones. Russian defence minister Sergei Shoigu discussed t