A new ash cloud originating from Chile's Puyehue volcano has again seriously impaired flight operations in Argentina.
Buenos Aires's two international airports were forced to close on the evening of Sunday 16 October after the ash cloud covered large parts of southern and central Argentina.
Both Aerolineas Argentinas and LAN Argentina have suspended many domestic and some international flight operations for Monday 17 October from Buenos Aires Ezeiza and Aeroparque airports.
According to the website of airport operator Aeropuertos Argentina 2000, all flights at both airports remain cancelled for the morning of Monday 17 October.
The volcano began erupting on 4 June and affected flights for about two months.
The new ash cloud is even hitting road transport in Buenos Aires where the traffic authorities have imposed a maximum speed on regional motorways of 25kmh due to a "lack of visibility".