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Brazil's state-run oil company Petroleo Brasileiro SA and some of its executives were hit with a U.S. class action lawsuit by investors in $98 billion of the company's securities over an alleged kickback and bribery scheme.

Police officers in dress uniform and other mourners joined a somber, four-block line outside a New York City church on Friday for the wake of one of two officers shot by a man who said he was avenging the killing of unarmed black men by police.

U.S. law enforcement agencies are a long way from being able to effectively track threats of the kind a gunman posted on Instagram before his execution-style murder of two New York City policemen last weekend.