Chile and Argentina have ordered a red alert and evacuation of around 3,000 people living near the Copahue volcano located between their shared border.
Last December, Chile also issued a red alert after the volcano started spewing ash and gas, resulting in a cloud of ash almost a mile (1.5 kms) high in the Biobio region.
Copahue is one of the most active volcanoes in the region.
More top news
Schools in London, Brighton and Newcastle were among those closed after bogus security threats.
The World Health Organization said postponing the 2016 Games would not 'significantly alter' the spread of the Zika outbreak.
Employment Minister Priti Patel has launched a scathing attack on the government's 'chaotic' immigration controls.