Bill O'Reilly, host of Fox News' "The O'Reilly Factor," announced Tuesday that he would be taking a "planned vacation," one he had scheduled last fall.

But New York Magazine reports that four separate network sources said Tuesday's episode could be O'Reilly's final show on the network. In the middle of a storm surrounding numerous sexual harassment claims, his fate may be decided by the Murdoch family in the coming weeks, the magazine reported.

According to CNN, a Fox News spokesperson denied reports that O'Reilly isn't coming back and said he will return April 24.

The sources say that a legal team from the same firm that investigated former Fox News Chairman and CEO Roger Ailes is now investigating O’Reilly’s past and present. They’re looking into recent sexual harassment claims made by Fox News guest Wendy Walsh, according to the report.

A recent mass boycott of "The O'Reilly Factor" caused the show to lose at least half its advertisers; the New York Times says the number may be closer to two-thirds.

– The Cox Media Group National Content Desk contributed to this report