A boy wearing a protective mask, walks along an ash-covered street near San Carlos de Bariloche, Rio Negro, Argentina, on June 7 three days after the eruption of Chile's Puyehue volcano. Dozens of South American flights had to be scrapped Tuesday because of the huge cloud of volcanic ash spewing from a Chile an volcano, as fears grew of possible landslides near the eruption. So far 4,000 people have been evacuated from 22 rural Chile an communities surrounding the Puyehue volcano, which rumbled to life on Saturday after showing no activity since 1960, when it erupted following a magnitude 9.5 earthquake.(Francisco Ramos Mejia/AFP/Getty Images) #