Aerial view of rail bridge taken down by a mudslide after the collapse, two days ago, of a dam at an iron-ore mine belonging to Brazil's giant mining company Vale near the town of Brumadinho, state of Minas Gerais, southeastern Brazil, on January 27, 2019. - Communities were devastated by a dam collapse that killed at least 37 people at a Brazilian mining complex -- with hopes fading for 250 still missing. A barrier at the site burst on Friday, spewing millions of tons of treacherous sludge and engulfing buildings, vehicles and roads.