After mercenary leader Yevgeny Prigozhin's brief mutiny, news emerged that Surovikin knew in advance about the rebellion against Russia's top defense leaders.
The pizza restaurant in the city of Kramatorsk took a direct hit on Tuesday night. The place was a popular hangout for local residents, as well as Ukrainian troops, journalists and aid workers.
The announcement follows the Kremlin's earlier pledge not to prosecute Yevgeny Prigozhin and his fighters after he stopped the revolt, even though President Vladimir Putin labeled them as traitors.
Russians who fled to Turkey after their country invaded Ukraine worry that Russian President Vladimir Putin may increase repressive measures that will affect their loved ones back home.
The fate of the private military company is unclear, especially after it was credited with delivering Russia recent gains in the country's war against Ukraine.
The rebellious leader of the Wagner mercenary group said he had ordered his troops back to base, but analysts say the serious challenge to the Russian president will diminish his authority.
Yevgeny Prigozhin posted a message on social media claiming Wagner troops have agreed to stand down and return to bases. The Kremlin said the criminal case against Prigozhin will be dropped.