Ash from a volcanic eruption in Chile grounded flights in neighboring Argentina, officials said Tuesday.
Airlines canceled most flights Tuesday at the Ezeiza International Airport in Buenos Aires, an official there said. Airports in several other cities are also affected, according to the state-run Telam news agency.
Smoke and ash shot more than six miles into the the sky when the Puyehue-Cordon Caulle volcano complex in southern Chile first erupted Saturday afternoon. Authorities evacuated about 3,500 people from the area, the state emergency office said.
The Patagonia region in southern Argentina was the most affected by the volcanic ash.
Cities that draw tourists, like Bariloche, San Martin de los Andes and others in the area canceled school and public activities.
Ash piled as high as 30 centimeters (about 1 foot) on highways through Patagonia. Local governments used machinery to clear the roads.