Presenter Holly Willoughby has given birth to her third child, a baby boy, and has revealed the infant's name.

Announcing his arrival on Twitter, Willoughby said: "I'm sooo happy to tell you all - we've just had a baby boy! Chester William Baldwin made a grand entrance at 8lbs 12. He's just perfect. X."

Willoughby and husband Dan Baldwin also have a daughter, Belle, and another son, Harry.