A 49-year-old Baton Rouge man has been indicted by a federal grand jury in an alleged $1.3 million fraud scheme.

Thomas J. Tanner Jr. is accused of defrauding his former employer, ISC Constructors LLC, and Chevron USA Inc. in 2013 and 2014, U.S. Attorney Walt Green said Tuesday.

Tanner, while working as project manager of a job site in Pascagoula, Mississippi, allegedly caused false payroll information and false documentation to be submitted to ISC headquarters in Baton Rouge and to Chevron.

He is charged with four counts of wire fraud.

The FBI is conducting the ongoing probe, Green said.