Explosion of natural gas is considered the main version of the accident on the territory of battalion "Vostok" location, the chairman of Chechnya People`s Assembly Dukhava Abdurakhmanov said. "It was gas explosion, according to Prosecutor`s Office data, it▓ officials are working at the scene at the moment", Abdurakhmanov said at the press conference on Wednesday. Explosion occurred on the territory of battalion "Vostok" location in Kurchaloy on Tuesday. A suite is filed on the fact of explosion on Article 219 (Preventive fire-fighting regulations violation) and Article 293 (dereliction of duty) of the Russian Federation Criminal Code. According to Chechya`s Prosecutor`s Office data, the explosion resulted it 12 people dead and 22 people injured.