Two more nurses have been arrested on suspicion of wilful neglect in connection with the falsification of patients' notes at the Princess of Wales Hospital in Bridgend.
South Wales Police say the two women, aged 29 and 40, who are both from the Bridgend area, have been released on bail until a later date. Both women were previously suspended by Abertawe Bro Morgannwg University Health Board as part of an ongoing internal investigation.
A total of 15 nurses have been suspended by the health board, the majority of which had worked at the Princess of Wales Hospital in Bridgend.
Three other nurses have already been charged with wilful neglect.