The authenticity of the 18-minute tape, posted on a website known for carrying messages from &to=http:// english.pravda.ru/world/20/91/366/14874_.html ' target=_blank>Islamic militant groups, could not be determined. The voice on the tape sounded similar to previous audio tapes attributed to the Jordanian-born militant who leads an &to=http:// english.pravda.ru/main/2002/07/26/33240.html ' target=_blank>al Qaida affiliate in Iraq.
US intelligence officials are looking into the authenticity of the tape, said one official in Washington.
The Investigative Committee of the Russian Federation put the head of the contractor company of Russia's space corporation Roskosmos, Sergei Slastikhin, on international wanted list
"Washington operators of the sanctions machine ought to get acquainted with the history of Russia, to stop the unnecessary fussing," spokesperson for the Foreign Ministry said