Ant Middleton is to leave Channel 4's SAS: Who Dares Wins after five years, it's been revealed.
Channel 4 has announced it will no longer be working with the former special forces soldier turned TV personality.
Ant had been Chief-instructor on SAS: Who Dares Wins as well as its celebrity series since their launch in 2015.
A spokesperson for Channel 4 said in a statement: "Ant Middleton will not be taking part in future series of SAS: Who Dares Wins.
"Following a number of discussions Channel 4 and Minnow Films have had with him in relation to his personal conduct it has become clear that our views and values are not aligned and we will not be working with him again.”
In his own statement in a post on Twitter, Ant said: "After 5 incredible years I’ve decided it’s time to move on from SAS Who Dares Wins UK. Big respect to my fellow DS – it’s been a journey I’ll never forget.
"Thanks to everyone that took part and made the show what it is. Really excited about the future and what’s coming this year."
He added: "Stay positive."
In a follow up interview with The Sun newspaper, Ant explained: "I think that ultimately what has happened is that the people that make the show and I have very different opinions on where the show started and where it is going in the future.
“When I started making the show and as I was involved from the beginning, it was very simple and at its core it was to show what Special Forces’ selection was.
“And I am sad to say that in recent years the producers of the show have drifted from this and it has become more of a reality show than I feel comfortable with.
“I have decided to walk away from it, it is clear Channel 4 and I have fallen out over it and that is regretful. I have butted heads with some of the team but ultimately it is out of a passion for what I wanted to do and that’s make the best show possible.”
It's understood that Ant will still feature in the show's upcoming 2021 series and Celebrity special, which have already filmed, but will not return for 2022.