A river of mud from burst dams at a Brazilian iron ore mine forced populous cities more than 300 km (200 miles) downstream to cut off drinking water on Monday, raising health and environmental concerns as slow-moving search efforts continued.
A river of mud from burst dams at a Brazilian iron ore mine forced populous cities more than 300 km (200 miles) downstream to cut off drinking water on Monday, raising health and environmental concerns as slow-moving search efforts continued.
