A federal equal opportunity agency has filed a subpoena enforcement action against Nike as it seeks a court order to force the company to turn over documents related to allegations it “discriminated against white workers.”

The Equal Employment Opportunity Commission filed a motion to enforce its existing subpoena against Nike in a federal court in the Eastern District of Missouri Wednesday. The motion comes as part of the agency’s investigation into the athletic apparel company’s employment practices. The EEOC says the investigation is looking at Nike’s possible violation of race-based employment discrimination clauses in Title VII of the Civil Rights Act of 1964.