A baby that was knocked out of its pushchair in a freak three-car accident died of natural causes two days later, a post mortem has revealed.

The examination of tragic 13-day-old Ellie Walls, of Kirkstone Close in Houghton-le-Spring was carried out by a pathologist today.

She died after experiencing breathing difficulties on Monday morning and was taken to Sunderland Royal Hospital but doctors were unable to save her life.

Her parents Melanie Walls and Terry Riley are said to be devastated, along with the entire community where they live.

Today they were being comforted by friends and relatives and have asked people respect their privacy.

The coroner has been informed and an inquest is likely to be opened and adjourned this week, pending the further inquiries.

The police investigation into Ellie's death is now complete and officers are satisfied it had nothing to do with the crash on Saturday at 12.50pm.

Ellie had been released without injury on Saturday after her pushchair was knocked over when two cars collided 100 yards from her home on Queensway.

She was being looked after by her mother's cousin Sharon Smith while, it is thought, her parents attended a wedding.

Norman Turton, who lives opposite the babysitter on Queensway, was reversing his Vauxhall Astra estate into the street.

He said his car was glanced by a Fiat Punto, driven by a young woman, who then lost control and hit the buggy and knocked it over.

Painter and decorator, Mr Turton, 63, said the Punto then demolished a garden fence and damaged the Mini Cooper that was parked inside. Police are still investigating the collision and want anyone with information to get in touch. The number to call 0191-454 7555 ext 66930.