University Hospital Galway has confirmed that bone fragments found during construction work in the hospital grounds are not human.
Construction staff working on a pipe-laying project unearthed several items while digging in an area close to the hospital’s helicopter landing pad.
Among the items was a piece of bone, understood to have been around 10cm in length.
A hospital spokesperson said it has been confirmed that the bone is not human.
An environmental assessment is being carried out on the area in question, where pipes will be laid as part of development work.
Construction work on the site has ceased and the Health Service Executive has notified all relevant authorities, including gardaí and Galway City Council.
Fragments of glass, fabric and other materials were also found.
One piece of glass had the year 1952 stamped on it.
At this stage, it is thought the construction workers may have discovered a waste facility from the middle of the 20th century.
A hospital spokesperson said building work would not resume until a full assessment of the site was completed.