Russia warns of the "critical situation" in a city in the Urals after a dam burst. On Friday, the bursting of a dam in Orsk, near the border with Kazakhstan, caused a rapid rise in water levels.
More than 4,500 houses have been flooded and more than4,000 people have already been evacuated to temporary accommodation centers. The authorities have classified the disaster as a "federal emergency", which allows special funds to be released.. Reinforcements have also arrived at the scene to help the specialists who are already working.