"Hearing the hypocrisy of Chris Cuomo's on-air words and disgusted by his efforts to try to discredit these women, my client retained counsel to report his serious sexual misconduct against her to CNN," Katz said in the statement.
CNN was reviewing Chris Cuomo's conduct following the new information, and a law firm hired to help had recommended the network terminate Chris Cuomo.
"It goes without saying that these decisions are not easy, and there are a lot of complex factors involved," CNN chief Jeff Zucker wrote in an email to CNN staff on Saturday.
Cuomo issued a statement on Twitter calling the decision disappointing.
"This is not how I want my time at CNN to end but I have already told you why and how I helped my brother. So let me now say as disappointing as this is, I could not be more proud of the team at Cuomo Prime Time and the work we did," he said.
The new misconduct allegation comes after a veteran TV executive, Shelley Ross, wrote a column for The New York Times in September saying Chris Cuomo had groped her at a party 16 years ago, when they both worked for ABC News. Cuomo told the newspaper that "I apologised to her then, and I meant it".
- AP