Four people, not including the sources, claimed to have seen the photo themselves, while eight more said the recipients had spoken to them about its contents.
The report said the messages were sent several years ago and on separate occasions.
Sean Spicer Won't Tango for Dancing with the Stars
If you had your heart set on seeing Sean Spicer stumble his way through a rumba on live television, sorry about your luck. Former White House Press Secretary Sean Spicer won't be joining " Dancing with the Stars " next season, reports TMZ .
The allegations follow a series of sexual harassment scandals involving senior Fox News executives and on-air stars.
According to a statement from Fox News to the CBC, an investigation into allegations against the television host is underway.
Former Fox anchors Megyn Kelly and Andrea Tantaros also accused Mr Ailes, who died aged 77 in May, of sexual harassment following his shock departure. When referring to the first female pilot in the United Arab Emirates during a segment on "The Five" in 2014, he said on air that it might be better to characterize her as "boobs on the ground" rather than "boots on the ground".
Primetime commentator Megyn Kelly also left Fox News this year, reportedly partially because she was upset by O'Reilly's criticism of her for publicly commenting on the sexual harassment she faced at Fox News, The New York Times reported in April.
Iran says United States breaching nuclear deal as Rouhani starts new term
Rouhani also called America "a country that isn't reliable when it comes to worldwide issues". It would also apply sanctions to Iran's Revolutionary Guard and enforce an arms embargo.
NBC News was not able to independently verify the allegations.
The law firm of Paul Weiss is conducting the investigation and rotating substitute hosts will fill in for Bolling on The Specialists and Cashin' In, according to Fox News.
Is Eric Bolling going to be next?!?! He is an avid defender of President Donald Trump and has frequently drawn praise from the president.
Fox News recently renewed Bolling's contract.
Warriors' Steph Curry shoots a 74 in Web.com Tour event
And now the former NBA Most Valuable Player has added another feather to his cap - after making his professional golf debut. On the 15th fairway, Curry leaned on West, a member of Golden State's front office and son of Hall of Famer Jerry West.
NPR received a statement from Fox News about the issue.