A critically injured father has taken his last breath just days before his son is set to be woken from an induced coma.

The 39-year-old man and 10-year-old boy — both named Leslie Spencer — were hit by a car at the intersection of Kent St and Cambridge St in Rockhampton City about 11.40am last Friday.

The father and son, known respectively to loved ones as Les and Bubba, had been riding bikes to the boy’s primary school.

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Instead, they were both taken to hospital with life-threatening head injuries.

“It shouldn’t have happened,” sister and aunt Elizabeth Langford told 7NEWS.com.au. Elizabeth was by her brother’s side when he died in Rockhampton Hospital on Sunday.

His injuries included multiple skull fractures, severe brain swelling and bleeding, and multiple rib fractures that punctured his lung.

The younger Leslie, who was airlifted to Brisbane Hospital, remains in an induced coma.

“He is being brought out of his coma in the next few days,” Elizabeth said. “His big sister is with him right now.”

Leslie’s cousin and the organiser of a GoFundMe arranged to support the family, Chloe Hughes said: “Our family is praying and hoping with everything we have for his recovery.”

Queensland Police are still investigating the crash, and have interviewed the driver, a 43-year-old man who was uninjured.