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 El Nino have caused three major rivers to swell, and authorities have reported at least six weather-related 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.

(BBC)