An audio address of head of the Caucasus Emirate of Doku Umarov appeared in the Internet, in which he states that the explosions in the Moscow metro were organized by the FSB. "The Chechens would not have done that. They have done everything as though Russian security services had nothing to do with this, but in reality they are guilty. The FSB is to be blamed for the explosions in Moscow," - said Umarov. According to official figures, 39 people were killed during the explosion in the Moscow metro.