Chile volcano ash cloud halts flights
A cloud of ash from an erupting volcano in Chile is continuing to cause travel chaos in parts of Argentina and Uruguay. The cloud has also affected flights in the south of Brazil.
Flights from the Argentine capital Buenos Aires, and Montevideo in Uruguay, remain grounded for a second day. Chile's Puyehue-Cordon Caulle volcano range began erupting last Saturday.
The BBC's Daniel Schweimler in Buenos Aires says there is no end in sight to the disruptions.