Mariana

Brazilian authorities late on Nov. 7 were investigating a second suspected death after two dams at a major mine in the country's southeast burst and unleashed a massive mudflow that wreaked havoc across more than 80 km (50 miles).

A dam holding back waste water from an iron ore mine in Brazil that is owned by Vale and BHP Billiton burst on Nov. 5, devastating a nearby town with mudslides and leaving officials in the remote region scrambling to assess casualties.