[1/2] An Ukrainian serviceman sits atop an infantry fighting vehicle (IFV), amid Russia's invasion of Ukraine, near the bombed-out eastern city of Bakhmut, in the eastern Donetsk region, Ukraine, April 2, 2023.
"From a legal point of view, Bakhmut has been taken," said Prigozhin, who has previously made premature claims.
"Bakhmut is Ukrainian and they have not captured anything and are very far from doing that," Serhiy Cherevatyi, spokesperson for the eastern military command, told Reuters.
Western pressure on Russia may increase with Finland, which shares a 1,300-km (810-mile) border with Russia, joining NATO on Tuesday.
"In the event that the forces and resources of other NATO members are deployed in Finland, we will take additional steps to reliably ensure Russia's military security," he told RIA.