Yevgeny Prigozhin, the founder of the Wagner Group, continues to criticize the Kremlin.
Prigozhin has said his group will not continue fighting in Ukraine if leadership doesn't improve.
The Wagner Group, which has taken heavy losses in Ukraine, is in the process of leaving Bakhmut.
Wagner, the private army founded by Prigozhin, has experienced heavy losses fighting in Ukraine.
Igor Girkin, a former Russian Federal Security Service officer, has said the Wagner Group could pose an active threat to Putin's power and attempt to overthrow him.
Persons:
Yevgeny Prigozhin, Prigozhin, —, Vladimir Putin, Wagner, Igor Girkin, Putin
Organizations:
Wagner Group, Wagner, Service, Russian Wagner Group, Reuters, Wagner Army, The Institute, Kremlin, Russian Defense Ministry, Russian Federal Security Service
Locations:
Ukraine, Bakhmut, Russian, Russia, Donbas, Moscow