Ukraine war: Kyiv denounces Russia's 'dirty bomb' claims
Ukraine has condemned unsubstantiated claims by Russia that Kyiv might use a "dirty bomb" - conventional explosives laced with radioactive material.
President Volodymyr Zelensky said this meant Russia itself could be preparing an attack of this kind.
Ukraine's allies also dismissed the claims, with the US saying it "rejected any pretext for Russian escalation".
Russian Defence Minister Sergei Shoigu made the dirty bomb remarks in a call with his UK counterpart Ben Wallace.
He said he was "concerned about possible provocations by Kyiv involving the use of a dirty bomb".
On Sunday, Mr Shoigu also held a flurry of phone calls with defence ministers of the US, France and Turkey, voicing Moscow's alarm. He provided no evidence to back up his accusations. read more
