A vast cloud of ash spewing from a Chilean volcano has forced dozens of flights to be cancelled across South America, while mud and rain mixed with ash poured down on the resort areas in the region.<br /><br />Three days after Chile's Puyehue volcano began spewing debris, all flights in and out of the two busy Buenos Aires airports were scrapped on ?Tuesday after meteorologists said a portion of the cloud had moved as far as the Argentina capital, even though at 5,000m high it was not visible to residents.<br /><br />More than 90 per cent of the flights in an out of Uruguay were also cancelled, airport officials said.<br /><br />Al Jazeera's Craig Mauro reports from Buenos Aires.
