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CURITIBA, Brazil, Dec 11 (Reuters) - Brazilian prosecutors formally charged executives from six of the country's largest engineering firms of forming a cartel to funnel kickbacks from state-run oil firm Petrobras to the ruling political party and its allies on Thursday.
They were also indicted on charges of corruption, money laundering and organized crime in a landmark case that has shaken President Dilma Rousseff's government.
The companies with indicted executives are OAS, Camargo Correa, UTC Engenharia, Galvao Engenharia, Mendes Junior and Engevix. (Reporting by Caroline Stauffer)