Flooding 'worst in 50 years', as 150,000 flee in Paraguay, Argentina, Brazil and Uruguay

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Media captionStreets and homes have been completely submerged in the city of Concordia in Argentina
Vast areas in Paraguay, Argentina, Uruguay and Brazil are being hit by the worst flooding in 50 years, forcing the evacuation of more than 150,000 people.
Days of heavy rains brought on by the El Nino weather phenomenon have caused three major rivers to swell, and officials report at least six deaths.
A state of emergency is in force in Paraguay, the worst hit nation, where 130,000 people have fled their homes.
In northern Argentina, some 20,000 people have left their homes.
Dry weather is forecast for the Brazil-Uruguay border region in the next few days, but in Paraguay and Argentina water levels are still expected to rise.
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Media captionMeteorologist Chris Fawkes explains what El Nino is

Paraguay