The long-time producer of the CBS News show 60 minutes, Jeff Fager, is leaving his job “immediately” amid claims that he sexually harassed colleagues.
In an internal memo, CBS News president David Rhodes said the departure was “not directly related to the allegations surfaced in press reports”.
He said Mr Fager had “violated company policy”, without elaborating on how.
Mr Fager himself denies harassment, and told reporters he had been fired over a “harsh” text he sent to a colleague.
The news comes just three days after top CBS executive Les Moonves resigned with immediate effect after being accused of sexual misconduct, which he denies.
Image copyright AFP Image caption Les Moonves is one of the most powerful men in US media
CBS is currently the most-watched network in the US. The programme 60 Minutes, which airs on Sunday evenings, was first broadcast in 1968.
Earlier this year, CBS fired veteran presenter Charlie Rose, who was accused of sexual harassment by a number of women, including several CBS employees.