Russia floods: waters rising in two cities and thousands evacuated after dam bursts

Federal emergency declared in Orenburg region and at least 6,000 homes inundated after Ural River overflows

Flood waters were rising in two cities in Russia's Ural mountains on Sunday after Europe's third-longest river burst through a dam, flooding at least 6,000 homes and forcing thousands of people to flee.

The Ural River, which rises in the Ural Mountains and flows into the Caspian Sea, swelled several metres in just hours on Friday and burst through a dam embankment in Orsk - one of the hardest-hit cities - 1,800km (1,100 miles) east of Moscow.