Ukrainian president Volodymyr Zelenskiy said on Friday Russian leader Vladimir Putin was behind the death of mutinous mercenary boss Yevgeny Prigozhin, who died in a plane crash with his top lieutenants last month.
Mr Zelenskiy, who provided no evidence to back up his assertion, made the comment in passing at a conference in Kyiv as he was asked a question about the Russian president.
"The fact that he killed Prigozhin - at least that's the information we all have, not any other kind - that also speaks to his rationality, and about the fact that he is weak," Mr Zelenskiy said.
