Brazilian authorities have halted operations at an iron ore mine where the collapse of a waste reservoir triggered a deadly mudslide, the latest blow to co-owners BHP Billiton and Vale. At least four ...

Brazilian authorities investigating last week’s fatal collapse of a mine-waste reservoir have ordered operator Samarco to take emergency measures to deal with the catastrophic aftermath, prosecutors ...

Brazilian officials now say at least 117 people died in the deaths in the mountain city of Petropolis, and 116 more are missing. Many may be trapped in mud that cascaded down on the city this week ...