TV presenter confirmed the birth in a social media post shared with followers on Sunday evening (July 24) and revealed they had named the child Jack Anthony Alphonsus.
The child's name is in part a tribute to Dec's Northern Irish father, Alphonsus Donnelly, who passed away in 2011. He went on to say that his eldest daughter is "beyond excited to be a big sister".
The news will come as a huge surprise to most fans as the couple had not announced that they were expecting a second child. READ MORE: Stacey Solomon answers huge question about upcoming wedding to Joe Swash Dec wrote on Twitter: "Shortly before 10am yesterday, 23.
7. 2022, Ali and I welcomed the arrival of our son, Jack Anthony Alphonsus, a very welcome ray of light. He is wonderful and Isla is beyond excited to be a big sister!
Read more on msn.com