ArcelorMittal Brazil, the local subsidiary of ArcelorMittal, was issued a BRL 360,000 ($66,648) fine over the mistaken use of an iron ore waste dam siren.
Prosecutors said the siren, which is aimed at advising nearby communities in the event of a dam collapse, was accidently sounded by human mistake.
ArcelorMittal Brazil and Minas Gerais state prosecutors agreed over the fine value. They also agreed that ArcelorMittal Brazil should pay a fine for every time a faulty siren sounds. The fine should aid the nearby communities.