With Ukrainian forces advancing into Russian-occupied Kherson province, threatening a major defeat for Moscow, Russian officials phoned their Western counterparts on Sunday and Monday to air their suspicions.
Russia accused the Kyiv government of ordering two organisations to create a dirty bomb, an explosive device laced with radioactive material, without giving any evidence.
France, Britain and the United States said the allegations were "transparently false" and Washington warned Russia there would be "severe consequences" for any nuclear use.
"Russia would be making an incredibly serious mistake for it (to) use a tactical nuclear weapon," US President Joe Biden said on Tuesday. "I'm not guaranteeing you that it's a false flag operation yet, we don't know. But it would be a serious mistake."
INSPECTORS
Britain's Deputy UN Ambassador James Kariuki told reporters: "This is pure Russian misinformation of the kind of we've seen many times before and it should stop."
Russia's defence ministry said the aim of a dirty bomb attack by Ukraine would be to blame Moscow for the radioactive contamination, which it said Russia had begun preparing for.
In an apparent response to Moscow's allegation, the UN nuclear watchdog said it was preparing to send inspectors to two unidentified Ukrainian sites at Kyiv's request, both already subject to its inspections.
Ukrainian Foreign Minister Dmytro Kuleba told reporters the inspectors would receive full access, and he called on Moscow to demonstrate the same transparency as Ukraine.
Russia's state news agency RIA has identified what it said were the two sites involved - the Eastern Mineral Enrichment Plant in the central Dnipropetrovsk region and the Institute for Nuclear Research in Kyiv.
President Vladimir Putin has not spoken publicly about the dirty bomb allegations but on Tuesday said Russia needed to streamline decision-making in what it calls its "special military operation" to rid its neighbour of extremists. Ukraine and its allies accuse Moscow of an unprovoked war to grab territory.
Putin, speaking at the first meeting of a new council to manage the government's work, said increased coordination of government structures and regions was necessary.
MORE HELP FOR UKRAINE?
German President Frank-Walter Steinmeier arrived in Ukraine on Tuesday on his first visit since Russia invaded on Feb 24 as Berlin hosted what it said was a conference on a "Marshall Plan" to rebuild Ukraine, a reference to the US initiative to rebuild Western Europe at the end of World War II.
Thousands have been killed, and homes and factories destroyed, since Putin ordered the invasion of Ukraine.
Since Russian forces suffered major defeats in September, Putin has doubled down, calling up hundreds of thousands of reservists, announcing the annexation of occupied territory and repeatedly threatening to use nuclear weapons.
Steinmeier said Berlin was working to help Ukraine with air defence equipment and would focus on assisting with repairs to infrastructure such as power grids before winter arrives.
https://news.google.com/__i/rss/rd/articles/CBMiYmh0dHBzOi8vd3d3LmNoYW5uZWxuZXdzYXNpYS5jb20vd29ybGQvcnVzc2lhLXJhaXNlcy1hY2N1c2F0aW9uLXVuLXVrcmFpbmUtZGlydHktYm9tYi1wbGFucy0zMDI1Mzgx0gEA?oc=5
2022-10-25 21:41:00Z
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