Brazil’s federal police made new arrests on Thursday morning and issued a detention order against former billionaire Eike Batista, in the latest chapter of a sweeping corruption investigation around state-controlled oil company Petrobras.

Nicknamed Operation Efficiency, prosecutors are investigating allegations that Batista and other people took part in a $100 million money laundering network to secure contracts in Rio de Janeiro state under the administration of former governor Sergio Cabral, who is already serving jail time.

According