The Kremlin on Friday rejected allegations it was behind a plane crash that is presumed to have killed mercenary leader Yevgeny Prigozhin, whose brutal fighters were feared in Ukraine, Africa and Syria and conducted a brief but shocking mutiny in Russia two months ago.

Prigozhin, who was listed among those on board the plane, was eulogized Thursday by President Vladimir Putin, even as suspicions grew that the Russian leader was behind a crash that many saw as an assassination.