The U.S. State Department released photographs on April 21 that purportedly link the so-called "little green men" who have seized government buildings in eastern Ukraine to Russian special forces.
The photographs were impossible to independently verify; however, they indicate a closer Russian involvement in the unrest in eastern Ukraine than the Kremlin has admitted.
Russian President Vladimir Putin has called claims of Russian involvement among the separatists in Ukraine "nonsense."
Ukraine sent a letter on April 16 to the Organization for Security and Cooperation in Europe with photographs they say document a larger Russian role in eastern Ukraine.
The photographs provided by the Ukrainian government show Russian special forces in Georgia and Crimea and in "family photos" juxtaposed with pictures of armed men taking over government buildings in the eastern Ukrainian cities of Kramatorsk and Slovyansk.
The government claims they are the same people.