Moscow: Investigators in Russia have fully ruled out the possibility that a terrorist attack was behind last week's Siberian power station disaster which killed at least 69 people, prosecutors said on Monday.
"It has been established that the accident was of a technical nature," the investigative committee of Russian prosecutors said in a statement.
"The concrete causes of the accident will be determined in the course of the investigation. The investigation has fully examined the theory of a terrorist attack and refuted it."
Sixty-nine people have been confirmed dead while six others remain missing in the wake of the August 17 catastrophe at the Sayano-Shushenskaya dam in southern Siberia, Russia's largest hydroelectric power plant.
Last Friday, a radical Islamist group, Riyadus Salikhiin, claimed it triggered the disaster by detonating an anti-tank grenade in the plant's turbine hall as part of a campaign of "economic war" against Russia.
Authorities were quick to deny the claim and insisted that a technical fault was to blame for the accident, in which a massive flood of water engulfed some 100 workers in the turbine hall.
Riyadus Salikhiin, which posted its claim on a Chechen rebel website, has been linked to a series of deadly attacks in Russia in recent years.
But Chechen militant groups have also been known to issue false claims of responsibility for incidents later proven to be accidents.
First Published: Monday, August 24, 2009, 13:47