The Kremlin said Western suggestions he had been killed on its orders were an "absolute lie."
"Today we have reached the boiling point," he said in the clip published on Grey Zone, Wagner's Telegram channel.
He added, "But I will not lie, I must say honestly that Russia is on the brink of disaster.
Some posts speculated Prigozhin was alive.
One post said Ukraine had killed Prigozhin by order of US special services "and the Anglo-Saxons" and added, "it is inconvenient for us to lose such a hero," to which someone responded with three crying-laughing emojis.
Persons:
Yevgeny Prigozhin, Wagner, Semyon Pegov, Prigozhin, Sergei Surovikin, pina colada, Vladimir Putin, Elaine Monaghan
Organizations:
Kremlin, Grey, Thomson
Locations:
Moscow, Russia, Jamaica, France, Ukraine