A window in the new Royal Liverpool University Hospital broke and "spewed" glass over a public footpath.
The ground floor window of the hospital's support services building broke and according to eyewitnesses the glass "spewed everywhere" after falling on Friday afternoon.
A picture showed the pathway next to the building, on Mount Vernon Street being blocked with red metal fences as a precaution. One eyewitness said: "Good job it didn’t happen when Royals were here."