A spokeswoman for South Western Ambulance Service said the boy hit by an ambulance in Bath is now in a "stable condition".
"He was transferred to Frenchay Hospital because he is suffering from head trauma and the hospital has a specialist major trauma unit," she added.
The schoolboy who was hit by ambulance in Bath who was thought to be 14 is now believed to be 10.
He was taken to the city's Royal United Hospital after the accident at the junction of London Road and Snow Hill near the River Avon, she added.
A schoolboy who was hit by an ambulance in Bath has been transferred to Frenchay Hospital in Bristol. He was initially taken to the Royal United Hospital in Bath. South Western ambulance service say he suffered from 'serious head injuries'.
A schoolboy was hit by an ambulance on his way home from today. Domenica Oatley, who works at the community centre across the road witnessed the aftermath of the crash. She took in the boy's friends until their parents arrive.
The ambulance that hit a little boy on London Road in Bath earlier today, has returned to the scene. It initially took the boy to the Royal United Hospital in Bath because he has serious head injuries.
It is believed the boy hit by an ambulance in Bath is 14-years-old.
He is in a serious condition after suffering a "significant" head injury.
A young boy is currently in hospital after being hit by an ambulance on London Road. He was taken to the Royal United Hospital in Bath.