A mine collapse in east China\'s Anhui province has killed three workers, local authorities said Friday. Three miners were buried when the open-pit Lunan limestone mine in Fanchang county collapsed around 6:30 p.m. Thursday, sources with the county\'s publicity department said. Two other miners who were also working in the mine barely escaped, according to the sources. The Fanchang government has ordered the mine to be suspended and an overhaul of all the non-coal mines in the county, reported Xinhua. An investigation into the accident is under way.