South Wales Police is appealing for witnesses following the death of a 39-year-old man in Whitchurch yesterday.
The man was taken to hospital by ambulance after collapsing in Westbourne Road, Whitchurch and later died.
Police are appealing to anyone who saw him between 12.10pm when he left his home in Heol Booker and 12.35pm when members of the public came to his assistance in Westbourne Road.
His death is being treated as unexplained and the case has been reffered to the coroner.
Anyone with information should call 101 or Crimestoppers on 0800 55 111.