The colossal disaster happened on January 25 in the Brazilian state of Minas Gerais.
Harrowing CCTV footage obtained by Brazilian channel TV Globo shows the exact moment of the shocking collapse that unleashed a powerful torrent of sludge, destroying everything in its path and washing away roads, buildings, and villages.
At least 110 people were killed, while 238 more are still unaccounted for.
A ceremony was held at the fatal site on Friday to mark a week since the catastrophe. Rescuers momentarily stopped looking for bodies and police helicopters released flower petals over the ruined area. A priest also said a prayer in front of a tall cross that had been erected in the mud.
Vale is linked to another dam disaster in the same region in 2015. The catastrophic failure of a dam jointly owned by the mining company flooded the river below with toxic iron waste, killing 19 people and displacing hundreds more.
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