Germany has admitted the apparent hack by Russia of a military meeting where officers discussed giving Ukraine long-range missiles - and possible targets.
Audio of the video-conference meeting was posted to social media by the head of Russia's state-run RT channel.
The officers discuss how the missiles could hit the Kerch Bridge, which links Russia to the illegally annexed Crimea.
Russian politicians said the audio proved that its "sworn enemy" was planning attacks.
Germany's chancellor Olaf Scholz on Saturday called the apparent leak "a very serious matter and that is why it is now being investigated very carefully, very intensively and very quickly".