Federal authorities are suing the Fox News Network for allegedly retaliating against a reporter after she complained about unequal pay and job conditions based on her gender and age.

The Equal Employment Opportunity Commission says Fox News Channel reporter Catherine Herridge filed an internal complaint about allegedly discriminatory practices in 2007.

Fox found no evidence of bias, but the EEOC says the network later included language in Herridge's employment contract intended to stop her from making any more complaints.

Herridge refused to sign the contract. The network agreed to remove the language after she complained to the EEOC.

The EEOC seeks unspecified monetary damages and a court order enjoining Fox from retaliating against other employees.

A Fox News spokeswoman declined a request for comment Thursday.