Russia claims Ukraine is planning to use a dirty bomb – a device containing radioactive material as well as conventional explosives.
Ukraine has rejected Russia’s allegations, along with France, the UK and the US.
Russian defence minister Sergei Shoigu told the UK’s defence secretary, Ben Wallace, in a phone call that he was “concerned about possible provocations by Kyiv involving the use of a dirty bomb”.
He also made similar comments to his opposite numbers in the US, France and Turkey.
Russia has also made its claims to the United Nations Security Council and said using a dirty bomb would be an act of nuclear terrorism.
Its comments have been rejected by the foreign ministers of France, the UK and the US, who said Russia had made “transparently false allegations”.
Ukraine’s President, Volodymyr Zelensky accused Russia of being “the source of everything dirty that can be imagined in this war”.
It is a bomb that contains radioactive material, such as uranium, which is scattered…