Chechen link to school siege confirmed
Of the ten attackers identified so far, six came from Chechnya, where insurgents have been battling Kremlin forces for five years. The other four came from Ingushetia, a republic neighbouring Chechnya that saw attacks against police in June, in which 90 people were killed.
The identities, reported by regional security officials on condition of anonymity, appeared to draw a strong connection between the Chechen insurgency and last week's hostage-taking, which ended in gunfire and explosions that killed at least 326 people.
