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BRASILIA, Nov 25 (Reuters) - Brazilian Supreme Court Justice Teori Zavascki said on Wednesday that Senator Delcidio Amaral had been accused of trying to silence former Petrobras executive Nestor Cervero in a corruption investigation and confirmed he had ordered his arrest.
Cervero has been sentenced to 12 years in jail for paying a bribe to the speaker of Brazil's lower house of Congress, and his lawyers had been trying to negotiate a plea deal with prosecutors. (Reporting by Leonardo Goy; Writing by by Caroline Stauffer; Editing by Lisa Von Ahn)