Leaked photographs appear to show the leader of the Russian Wagner Group Yevgeny Prigozhin in various disguises as officials and figures from Middle Eastern and African countries where the mercenary group is active.
The images first appeared on Russian Telegram channels, shortly after state media published footage and photographs of armed officers raiding Prigozhin's mansion in St Petersburg.
The mercenary leader oversaw a short-lived mutiny against the Kremlin two weeks ago.
Wagner fighters crossed into Russia from Ukraine and claimed to have captured army headquarters in Rostov-on-Don in southern Russia on 24 June, before advancing northwards towards the capital Moscow.
Prigozhin called off the rebellion hours later, and it was announced that he would be exiled to Belarus as part of a truce agreed with Russian President Vladimir Putin and mediated by Minsk.