Governmental antitrust organization Cade announced a leniency deal with construction firm Andrade Gutierrez Engenharia S.A., along with executives and former executives, on 6 December 2016 (Valor, Globo G1). Through the deal, the firm and other signees have admitted to participation in cartel activity in the construction of stadiums for the 2014 World Cup, hosted by Brazil. The deal, closed in October 2016 in conjunction with the Federal Public Ministry of Rio de Janeiro, is another part of the Operação Lava Jato, an investigation into corruption related to contracts at state oil firm Petrobras. Cade believes at least five bidding processes were the targets of the cartel, including bids for Arena Pernambuco, in Recife, and the renovation of Maracanã in Rio de Janeiro. It suspects the involvement of major firms OAS, Camargo Corrêa, Queiroz Galvão, and Odebrecht as well. Andrade Gutierrez has recently signed leniency deals with Cade related to other cartel behavior linked to PAC Favelas in Rio de Janeiro and the bidding process for the Usina Hidrelétrica de Belo Monte.