The blast in Kurchaloi, some 30 kilometers east of the capital Grozny, on 7 February caused the two-story building to collapse.
Prosecutors say the most likely cause for the blast was a natural-gas leak. A criminal investigation for violation of fire-safety precautions and negligence has been opened.
But Chechen prosecutor Valery Kuznetsov said a terrorist act has not been ruled out.
The Kurchaloi barracks houses the Vostok battalion, a special Defense Ministry security unit of mostly Chechen soldiers.
(Interfax, ITAR-TASS, newsru.com)