Russia and Kazakhstan have ordered more than 100,000 people to evacuate after swiftly melting snow swelled rivers beyond bursting point in the worst flooding in the area for at least 70 years. The deluge of meltwater overwhelmed many settlements in the Ural mountains, Siberia and areas of Kazakhstan close to rivers such as the Ural and Tobol, which local officials said had risen by metres in a matter of hours to the highest levels ever recorded Russia and Kazakhstan evacuate tens of thousands amid worst floods in decades