U.S. Rep. Corrine Brown of Jacksonville and her chief of staff were charged with multiple fraud and other federal offenses in a grand jury indictment unsealed Friday after a federal investigation into a fraudulent charity with ties to the congresswoman.

Brown, a 69-year-old Democrat, was to appear Friday in Jacksonville federal court on charges of mail and wire fraud, conspiracy, obstruction and filing of false tax returns. She has represented a Jacksonville-based congressional district since 1993 and is seeking re-election in a newly-redrawn district.