Jakarta , Indonesia ( CNN ) -- A restless volcano in northern Indonesia erupted Friday , spewing clouds of ash as high as 2 kilometers into the sky , the country 's National Disaster Management Agency said . The authorities are warning residents to stay away from the volcano , Mt . Lokon , in North Sulawesi , said Sutopo Purwo Nugroho , a spokesman for the disaster management agency . A 2.5 kilometer exclusion zone had already been set up around Mt . Lokon , which had been showing signs of activity in recent days . A series of eruptions by Mt . Lokon in July prompted the evacuation of thousands of local residents . The volcano also erupted in October and December . Indonesia is located on the `` Ring of Fire , '' an arc of fault lines circling the Pacific Basin that is prone to frequent earthquakes and volcanic eruptions .
Indonesian authorities are warning people to stay away from Mt . Lokon . The volcano erupted Friday , spewing ash 2 kilometers into the sky . A 2.5 kilometer exclusion zone has been set up around the volcano . An eruption by Mt . Lokon in July prompted the evacuation of thousands of residents .