Jamie Oliver welcomes fifth child

Jamie Oliver has described an emotional delivery of his second son. Photo / Getty

Celebrity chef Jamie Oliver and his wife Jools have announced the arrival of their fifth child, a baby boy.

Posting an image to Instagram, the 41-year-old detailed the safe arrival of his yet-to-be-named son.

The latest addition to the Oliver family. Photo / Instagram, Jamie Oliver

"Everyone in the Oliver family is very surprised and beyond happy," Oliver wrote.

"He arrived safely, mum was really, really amazing, unbelievably composed, natural birth and my two eldest Girls got to come in at the very end as the baby was born which was amazing to witness very very emotional."

Wife Jools shared a snap on Instagram too, revealing how proud she was of the couple's teenage daughters, Poppy Honey, 14, and Daisy Boo, 13, who cut their new brother's umbilical cord.

Jools shared an intimate snap of her new son. Photo / Instagram, Jools Oliver

The Oliver clan are known for their quirky names. With the couple's first son named Buddy Bear, we're looking forward to hearing what they'll bestow on their second boy.