Flights in several South American countries are being disrupted by clouds of ash spewed by a Chile volcano range.

Flight to and from the Argentine capital, Buenos Aires, have been suspended, while in Chile, Santiago airport has also seen cancellations.

Earlier, Chilean authorities expanded the evacuation area around the Puyehue-Cordon-Caulle volcano range, about 800km (500 miles) south of Santiago.

It began erupting at the weekend and continues to belch a column of ash.

Aviation officials say around 60 flights - domestic and international - from Ezeiza and Aeroparque airports in Buenos Aires have been cancelled.

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