A former nurse who worked at Princess of Wales Hospital for eight years before leaving 2009 has claimed she witnessed poor patient care on a number of occasions.
Speaking to ITV News, Glenda Rodriguez-Noza described an incident when she saw a nurse giving a patient the wrong medication:
Mrs Rodriguez-Noza, who is involved in tribunal proceedings against Abertawe Bro Morgannwg University Health Board, also said her concerns about patient care were ignored.
"An internal investigation found there was not enough evidence to support my claims and in the end it all became too stressful.
"I want to speak out because I want these people to be held to account and to stop these mistakes happening again and again".
Abertawe Bro Morgannwg University Health Board has issued a statement relating to patient care at the Princess of Wales Hospital.
There are fresh claims of serious neglect at a hospital at the centre of a major police investigation and an independent review in Wales.