Further tests will be required to determine the cause of death of a baby girl in Co Kerry.
A post-mortem has been carried out on the baby girl.
According to RTÉ, the results of the tests may not be available for a few weeks.
The woman, who is believed to be in her 30s, was 32 weeks pregnant and her baby girl was delivered stillborn a few hours after her mother was admitted to hospital following an assault.
The woman's injuries became known after gardaí attended University Hospital Kerry (UHK).
A man in his mid-20s was arrested in Kerry for assaulting the woman but has since been released without charge.
A file is being prepared for the DPP.