Her Twitter bio now states: “More live TV than anyone else, yes, really. Animal lover. Mountain climber. Impossibly proud mum.”
There is now speculation she could be jumping ship to work with Andrew Neil, with whom she became a founding presenter with when Sky News launched in 1989.
Sky News did not deny Kay Burley had left when approached for a comment.
Express.co.uk has also contacted GB News and a representative for Ms Burley.
More to follow.