South Wales Police says its investigation into the circumstance surrounding Tegwen Roderick's death is ongoing and a postmortem is being carried out.
A police spokesman said she suffered 'serious injuries' which are currently 'unexplained.' He added: "At this stage there is no confirmed link between the injuries and her death"
Four people are assisting officers with their enquiries.
More top news
Mainly dry with lengthy clear spells overnight and just a few showers likely, especially in the north and west.
Ysgol Uwchradd Caergybi became the UK's first comprehensive 65 years ago. Academies are now dominant in England, but certainly not in Wales.
Dry for most, but a few showers likely.