A Chinese mining company is accused of covering up the extent of a major toxic spill in Zambia

A Chinese-owned mining company has been accused of covering up the extent of a disastrous toxic spill in Zambia that polluted a major river that millions rely on with cyanide and arsenic. The spill happened in February when part of a dam that held waste from the Sino-Metals Leach Zambia copper mine collapsed, allowing it to flow into the Kafue River that runs through the heart of Zambia. Sino-Metals Leach Zambia is a subsidiary of the state-run China Nonferrous Metal Mining Group.