Russian authorities on Tuesday placed Oleksiy Arestovych, the former adviser to Ukraine's president, on their wanted list in connection with unspecified criminal charges.Arestovych resigned from his position as presidential aide in January over controversial comments he made about a deadly Russian airstrike in the central Ukrainian city of Dnipro.Russias Interior Ministry database lists Arestovychs personal information, according to Interfax, but itdoes not disclose the criminal allegations against him.Arestovychs placement on Russias wanted list comes after Russias Federal Financial Monitoring Servicelisted him among terrorists and extremists in May.Russian authorities maintain a blacklist of hundreds of figures they accuse of supporting terrorist or extremist organizations.Prosecutors in Belarus, a close Russian ally, in March last yearcharged Arestovych with calls to commit terrorist acts against the Belarusian railway network.Similarly, Kremlin-backed prosecutors in eastern Ukraines separatist Donetsk Peoples Republic in April 2022charged Arestovych with public calls to carry out extremist acts.