Bill O'Reilly is suing a former New Jersey politician who claimed in a Facebook post that the former Fox News host sexually harassed his ex-girlfriend.

O'Reilly is seeking $5 million from Michael J. Panter, a former member of the New Jersey General Assembly, according to a legal summons filed with the New York Supreme Court.

The court filing said O'Reilly is seeking "damages for the public hatred, ridicule, disgrace and permanent harm to his professional and personal reputations as a result of Defendant Panter's publication of knowingly false defamatory statements," according to the Hollywood Reporter.

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"My legal team has decided to file a lawsuit against a man who posted a bunch of lies about me on Facebook. As usual, some in the press picked up the deceit and spread it around," O'Reilly said in a post on his website Thursday.

"There is no way to stop this defamation which has dramatically harmed me and my children. So, now, we will use the courts. I will tolerate no more."

In his Facebook post, Panter wrote that O'Reilly had "publicly settled" with the woman. He claimed she had worked with O'Reilly and described several late-night phone calls which he said made her "clearly uncomfortable."

Panter also alleged that in one phone call, O'Reilly asked for damaging information on another woman who was suing him for sexual harassment.

O'Reilly left Fox News in April over sexual harassment allegations. A report last week uncovered that the network previously offered him an extension on his contract after he settled a $32 million lawsuit over sexual harassment.