David Campbell’s five-year-old son Billy is rushed to hospital

Channel Nine presenter David Campbell has shared a troubling family update on Wednesday after his son Billy was rushed to hospital.

The Today Extra host, 46, told his Instagram followers that Billy, five, had fractured his arm while attempting a ‘ninja kick off the couch’.

David thanked the Sydney Children’s Hospital staff for their care and attention, and assured fans his son was doing fine.

‘Thanks you to all at @SydneyChildrens for taking care of Bill today,’ David wrote.

The Smooth FM announcer went on to explain: ‘He has a fractured arm after a particularly spectacular jump from the sofa during karate.

‘Only tiny but still uncomfortable for him. He is impressed with the cast. A simple ninja kick off the couch was the cause.’

He signed off by letting his followers know Billy was ‘home safe and well’.

David, who is the son of Cold Chisel frontman Jimmy Barnes, revealed earlier this month how his rescue dog, a Nova Scotia Duck Tolling Retriever called Scully, had made an impact on his family.

In his column for Stellar magazine, he wrote: ‘We are so lucky to have Scully. We have been healed and made whole as a family in ways I never knew we needed.

‘Scully has trained us. She has made us better humans in this world of dogs.’

David described how Scully had turned wife, Lisa, from a cat lover into a dog lover, and how his son Leo, 10, was the ‘first to take a shine to her’.

Twins Billy and Betty took longer to warm up to the cute canine. 

David and Lisa first announced they had adopted Scully in August last year, sharing adorable photos of the pup to their Instagram accounts.

The dog’s name was inspired by Gillian Anderson’s character Dana Scully in the sci-fi drama series The X-Files.