They say they didn’t carry out the Beslan atrocities, but they did down the airliners, and they are promising more. From Radio Free Europe/Radio Liberty, with thanks to Nicolei:
The murky group calling itself the Islambouli Brigades issued a call on 9 September to “all our cells in every region of Russia to launch a destructive war.” The text of the message as reproduced in English on the globalterroralert.com website reads:
“The war is coming, if Allah wills it…we in the Islambouli Brigades call on all our cells in every region of Russia to launch a destructive war in the face of the infidels in Russia, and to target every place the same way that the evil Putin has declared that he has targeted every Muslim in the world and the Islamic land of Chechnya. O’ Putin, everyone who lives in Russia will hear the sound of our response, and your nation will taste the hellfire as long as you thirst for the blood of Muslims and the Muslims in Chechnya…and until you withdraw from your cemetery that lies in the Islamic land of Chechnya.
“We in the Islambouli Brigades have put our words into action previously on the ground in Moscow and in the sky over Russia, and we declare that this infidel country will be a target for us in the coming endless wave of operations, if Allah wills it.”
The group has denied responsibility for the recent attack on the school in Beslan, North Ossetia, but, in statements on the Internet, it has reiterated that it was responsible for the attacks that downed two Russian airliners on 24 August and the 31 August suicide bombing outside a subway station in Moscow that killed nine people.