South Wales Police are appealing for information as a 16-year-old remains in a life-threatening condition after sustaining a serious head injury on Friday night.

Emergency services were called to St David's Crescent at around 8.15pm to reports of a boy being found unconscious.

In its appeal, South Wales Police say the boy remains in a life-threatening condition at the University Hospital of Wales, Cardiff.

Two people have been arrested in connection with the incident: a 19-year-old man is in custody on suspicion of assault and a 17-year-old male has been released on police bail pending further enquiries.

Anyone with information is asked to please contact South Wales Police on 101 or via direct messages on social media quoting occurrence *025204.

Alternatively call Crimestoppers anonymously on 0800 555 111.