At around 10pm on March 7, South Wales Police were called to a licensed premises in Barry.
A 35-year-old man from Penarth suffered a head injury as a result of a fall and remains at the University Hospital of Wales, Cardiff.
At this stage there is no evidence or suggestion of a criminal act, and it appears the injury was caused by an accidental fall.
Enquiries are continuing into the circumstances of the incident.
