The pensioner had been at the Morfa day unit at Barry Hospital

The elderly woman, who suffered from memory loss, had broken both her hips when she fell as she tried to leave the house at Dinas Powys in south Wales on 20 August.

She had been returning from a day centre to her daughter's home where she lived, but despite protesting that they were leaving her at the wrong house, the ambulance crew found a key under a doormat and left her.

It was only when the woman's family five miles away in Penarth asked why she had not arrived home that the crew realised their mistake.

But the family were furious that the crew did not return immediately to collect her.

By the time the crew did return, after dropping off other patients, she was lying in the garden.

She had tried to get out of the house and had fallen over in the garden, breaking both hips.

She then had surgery and died at Barry Hospital on Sunday.

After she had been left at the wrong house, Cardiff and Vale NHS Trust and the Welsh Ambulance Services Trust apologised to the family and began an investigation into the incident.

The woman's relatives have seen a solicitor and are considering taking legal action.