The ministry also broadcast what it claims was a conversation between two Russian FSB officers discussing Gerasimov’s death.
In the recording the FSB officers complained their secure communications were no longer working in Ukraine.
Investigative Journalism agency Bellingcats has confirmed Gerasimov’s death with a Russian source.
Christo Grozev, Executive Director of Bellingcats, said his agency had also identified the senior FSB officer in the intercepted conversation
Writing on Twitter, Grozev said that the defective Russian secure communications equipment was new technology which shouldn’t be defective.
He said: “In the call, you hear the Ukraine-based FSB officer ask his boss if he can talk via the secure Era system.
“The boss says Era is not working.
“Era is a super expensive cryptophone system that [Russia’s defence ministry] introduced in 2021 with great fanfare.
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It comes as Ukrainian President Volodymyr Zelensky has said the war was “like a nightmare” for Russia after reports of poor morale and logistical issues.