The head of the General Staff of the Russian Armed Forces Valery Gerasimov had a phone talk with the British Chief of Defense Staff Anthony Radakin.

"The conversation continued to discuss with the British side the situation related to the possible use of a 'dirty bomb' by Ukraine," the Russian Ministry of Defense said in a statement.

Earlier, Defense Minister Sergei Shoigu, during phone talks with colleagues from the US, France, the UK and Turkey, reported the threat of the use of a "dirty bomb" by Kyiv.