Ukraine was not involved in the reported death of Wagner boss Yevgeny Prigozhin, President Volodymyr Zelensky says.
"We are not involved in this situation, that's for sure. I think everyone is aware of who is involved," Zelensky tells journalists in Kyiv.
"Everyone is aware who is involved".
Russia’s President Vladimir Putin made no mention of the crash when he addressed an international summit earlier.
Authorities say all 10 people on the plane were killed when it crashed near Moscow - and that passengers included Prigozhin and his right-hand man Dmitry Utkin.
There’s continued speculation about what happened. UK defence sources tell the BBC that Russia’s FSB intelligence agency is most likely to be responsible.
The Wagner mercenary group was very active in Ukraine, until Prigozhin led a short-lived mutiny against the Russian military leadership in June - which Putin called "treachery" at the time.
Prigozhin spent almost a decade building the Wagner paramilitary group.
It became central to Russia's war effort in Ukraine and Prigozhin's troops helped to spread Russian influence across the globe, propping up allies of President Vladimir Putin in Africa and Syria.
Now his death has sparked a flurry of speculation about the group's future.
Western security officials are wondering who will take his place and what will happen to the mercenaries he once led.