The family of a 21-month-old boy who was critically injured in a quad bike accident last night spoke of their heartache.
Harvey Hair had been given the child's bike as a Christmas present by his father Jason, who was riding it with Harvey on board when it crashed into a metal barrier in a car park.
Last night, as Harvey remained seriously ill in hospital, his grandmother said Mr Hair was overcome with grief and guilt about what had happened.
Joan Rushton, aged 70, said: "Jason phoned me from the hospital to say if Harvey dies then he will die with him because he is so upset."
The accident happened at Shobnall Leisure Complex, Burton-on-Trent, Staffordshire, last Wednesday afternoon.
Harvey was originally taken to Burton's Queen's Hospital but was then transferred to the specialist trauma unit at the Queen's Medical Centre in Nottingham, where he remained on a life-support machine last night.
His 34-year-old father, from Winshill, Staffordshire, suffered abdominal injuries and was knocked unconscious but has now recovered.
He and his partner - Harvey's mother Sharon Eley, aged 29 - spent yesterday by his bedside, while their four-year-old daughter Sky was looked after by neighbours.
Mrs Rushton spoke of her heartache at the accident and warned parents against buying motorised machines designed for children's use.
She said: "He is still on a life-support machine and very ill. We are so worried. This is a very critical time and it is touch and go whether he pulls through.
"We are all praying for them both at the moment and that is all we can do.
"They were going to switch off the life-support machine when he was first moved to Nottingham but it flickered and they could see life so they kept it on.
"I went to see him at hospital in Burton and it was terrible. They fetched me twice to see him but I couldn't go in.
"All we know is that they were on the quad bike with Harvey at the front and Jason behind and they hit a post. Harvey took the full impact.
"Jason is suffering terribly. He is feeling so guilty about what happened. We don't agree with the bikes. I wouldn't want children to go on them.
"My daughter has told them to destroy the thing. We didn't know anything about them buying it until we heard what had happened.
"I wouldn't recommend anybody to buy them for children of any age. If you had seen a child lying there lifeless and smashed up you would know never to buy one for a child. It is terrible.
"Harvey is a very loving and active boy, always bubbly and mischievous and so full of life."
Mrs Rushton praised paramedics and hospital staff for their efforts to save her grandson's life, and her friends for their support.
"I want to thank the doctors and nurses for their care. I know that Queen's did all they could for him before he was moved to Nottingham."
Police are still appealing for witnesses to the accident. Anyone with information is asked to contact Detective Sergeant Ian Fitzgerald at Burton CID on 01785 234971.