Torrential rain in Peru, which has been attributed to the weather phenomenon known as El Nino, has led to the formation of a new lake in one of the driest areas of South America.

The continuous rainfall has caused several rivers to burst their banks and change course, converging on the same area and creatinga three-hundred-kilometre-long lake in the Sechura desert in the north of the country.

Correspondents say it's the most important geographical change in Peru in modern times.

From the newsroom of the BBC World Service