The European Court of Human Rights on Thursday condemned Russia over its failings regarding the Beslan school siege in North Ossetia in 2004, killing over 330 people, according to a news release on the court’s website. The ruling has sparked an angry reaction from Russia, which called it "unacceptable."

Russian was ordered to pay three million euros in reparations, as the court thought the Russian authorities could have done more to protect the victims after they had received information that a terror attack was being planned.

Around 400 people are on the list of applicants to whom the court awarded compensation.

“The Court found that a number of measures needed to be taken in order to draw lessons from the past, raise awareness of the applicable legal and operational standards, and prevent similar violations in the future,” said the court’s news release.

The crisis started on September 1, 2004 in a school in the town of Beslan, and lasted three days. More than 1,100 people were captured as hostages in the school's gym, including 777 children. 34 armed terrorists, most of whom were wearing bomb vests, mined the gym and other areas of the school with explosive devices. After three days, Russian security forces stormed the building. Explosions and gunfire left over 330 people including 186 children dead.

No Russian official has taken responsible for the tragedy.

The court’s conclusions about the Beslan attack are “unacceptable”, Kremlin spokesman Dmitry Peskov told reporters on a conference call, adding that the country had been the victim of terrorist attacks.