Popocatepetl volcano in Mexico spews ash and steam
Authorities urge residents to take preventive measures to deal with the ash, including wearing dust masks, covering water supplies and staying indoors as the Popocatepetl volcano, just east of Mexico City, spews out a cloud of ash and vapour two miles high.
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Villarica volcano in southern Chile erupts, spewing heavy smoke into the air as lava surge down its slopes
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Some 30,000 Iraqi troops and fighters pound jihadist positions in and around Tikrit to retake the city
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