29 October 2004 -- The head of Russia's FSB security service says more than 80 suicide attackers have been trained on foreign soil to carry out attacks on Russia.
Nikolai Patrushev told Russia's State Duma that Moscow is aware of the threat but does not know what route attackers might take to enter Russia.
He also said that some potential attackers have been neutralized, but he gave no further details.
Suicide bombers have killed scores of people in Russia over recent years. In August twin explosions on two passenger planes killed more than 90 people.