Eight arrested in probe of Brazil dam disaster
Eight employees, including executives, of Brazilian mining giant Vale have been arrested as part of the criminal investigation into the collapse of a dam last month.
At least 116 people were killed and 147 are still missing after the collapse of the Feijao dam, in the town of Brumadinho.
The dam was being used to collect mining waste.
Reports say two of the persons arrested are executives at Vale.
They are to be questioned by investigators in Belo Horizonte, officials say
In addition, there are reports that search warrants have been issued for four persons from German consultancy firm Tuv Sud.
Tuv Sud conducted an audit in September last year which found that the dam met legal requirements.
But earlier this week, an internal report seen by the Reuters news agency said the Brazilian mining company knew the dam was at risk as it was told the site breached guidelines months before it collapsed.
Vale, which is the world's top iron ore miner, said the report was misleading as there was no evidence of imminent risk.