Around 200 residents were evacuated from an area near a tailings dam in Brazil operated by Vale SA late on Saturday, amid fears that it was structurally weak and could burst like a similar barrier failure last month that killed some 300 people.
A report commissioned by Brazilian miner Vale SA last year to look into the stability of the tailings dam that ruptured January 25, killing 135, certified it as sound but raised concerns over its drainage and monitoring systems, newspaper Folha de S Paulo reported on Tuesday.