Update: Roger Ailes, Fox News Chairman, claimed Gretchen Carlson's sexual harassment accusations to be "false" in a recent rebuttal statement.
Ailes said in a statement to Gawker that she "became aware that her career with the network was likely over and conveniently began to pursue a lawsuit.
21st Century Fox, Fox News' parent company, is currently reviewing the allegations in the lawsuit.
A Fox News representative did not immediately respond to a request for comment.
Carlson claimed in the lawsuit that Ailes took her off the popular morning show "Fox & Friends" in 2013, cut her pay and placed her in a less desirable afternoon time slot because she refused to have a sexual relationship with him. The lawsuit was filed in New Jersey state court.
She also claimed in the lawsuit that Ailes called her a "man hater" and that he criticized her for getting offended when she had confrontations with male coworkers including former co-host Steve Doocy.
Carlson, 50, said she was fired on June 23. She is seeking damages for lost compensation, damage to her career and mental anguish. A former Miss America, she joined Fox News in 2005.
The lawsuit accused Ailes of retaliating against Carlson by firing her and before that "ostracizing, marginalizing and shunning her after making clear to her that these 'problems' would not have existed, and could be solved, if she had a sexual relationship with him."
Fox News is a subsidiary of News Corp (NWSA.O). The lawsuit, which accused Ailes of retaliation, did not name the company as a defendant.
The case is Carlson v. Ailes, New Jersey Superior Court, Bergen County, case number not immediately available.