Singer Cheryl Fernandez-Versini has announced the birth of her first child with One Direction's Liam Payne in a post on social media on Saturday (March 25).

The 33-year-old former X Factor judge said in an Instagram post that the baby was born on Wednesday weighing 7lb 9oz.

She said they had not named him yet, adding he was "an incredibly beautiful, healthy baby boy".

"We are all madly in love and overwhelmingly happy with our little arrival," she wrote on the social media beside a picture of Liam holding the newborn.