The initial report of a Brazilian congressional investigation into corruption at state-run Petrobras concluded late Monday that the company and politicians did no wrong, and that suppliers and rogue employees were responsible for graft, according to a report.

The report by the committee's official rapporteur Luiz Sergio, a member of Brazil's ruling Workers' Party, also criticised police and prosecutors handling of the so-called Lava Jato, or Operation Car Wash, probe into contract fixing, bribery and political kickbacks at Petrobras, according to congressional news service Agencia Camara, cited by Reuters.

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