Russia's government has put International Criminal Court Prosecutor Karim Khan on a list of wanted persons.
The move apparently is in retaliation to The Hague-based court's decision to issue an arrest warrant for Russian President Vladimir Putin for alleged war crimes.
The Russian news agency Interfax reported on the addition of Khan to the interior ministry's database on Friday.
The ICC issued a statement on Saturday calling the Russian's actions " unwarranted and unjustified coercive measures." It added, " The Court will remain undeterred in the conduct of its lawful mandate to ensure accountability for the gravest crimes of concern to the international community as a whole."
In March, the ICC issued arrest warrants for Putin and another Russian official, accusing them of illegally deporting children to Russia from occupied areas of Ukraine.
Russia's Investigative Committee called the ICC's issuance of the warrants an illegal decision. It has opened a criminal case against Khan and judges Akane Tomoko, Rosario Salvatore Aitala and Sergio Gerardo Ugalde Godinez.