ROSTOV-ON-DON/VORONEZH, Russia—Heavily armed Russian mercenaries withdrew from the southern Russian city of Rostov under a deal that halted their rapid advance on Moscow but raised questions on Sunday about President Vladimir Putin’s grip on power.
Ending their short-lived mutiny, fighters of the Wagner group began heading back to their bases late on Saturday in return for guarantees for their safety. Their commander, Yevgeny Prigozhin, will move to Belarus under the deal mediated by Belarusian President Alexander Lukashenko.