Inspections were carried out by mine operators - Vale and ArcelorMittal - and ANM, which then co-ordinated the evacuation proces with the municipal and state authorities.
One dam is at Vale’s Gongo Soco mine, which halted production in April, 2016, according to the miner. The unit is in the city of Barão de Cocais, 140km away from Brumadinho, where a tailings dam rupture at the company's Córrego do Feijão mine in January led to the deaths of 157 people.
The other dam is linked...
