The number of victims identified remains at 71, said an official for regional civil defense.
In the last three years, this is reportedly the second incident that is said to have taken place at one of the mines owned by Vale and Australian mining company BHP Billiton, AP reported.
More than 250 firefighters, with the help of 22 trained dogs, search for the 226 still missing following the collapse of the dam owned by Brazilian mining company Vale in Brumadinho.
A Brazilian TV channel has released a video showing the moment the dam collapsed in the January 25 disaster in southwestern Brazil, with mud and waste spilling out over the mine before burying buildings downstream.
"An internal study showed the miner knew as recently as previous year that some of the areas hit were at risk if its tailings dam burst, according to a report by Folha de S.Paulo newspaper", Reuters reported.
The most recent victims were found in a changing room that was buried by more than 20 metres of mud. The sledge caused by the dam collapse tracked straight for Vale's cafeteria, where numerous workers were eating lunch.
The study envisaged that sirens would alert workers if the dam burst.
"If we had known (what the problem was), maybe this tragedy would have never happened", The ministry's mining secretary Alexandre Vidigal said.
Authorities have frozen over $3 billion in company assets in anticipation that it will pay damages, compensation and fines.
Vale is linked to another dam disaster in the same region in 2015.