A runner has died in hospital following a medical emergency after taking part in the Cardiff Half Marathon 2019 .
Organiser, Run 4 Wales, said the runner was immediately treated by the medical emergency team on the course, then taken to the University Hospital of Wales .
It said it made the announcement with "deep regret".
Chief executive Matt Newman said: “Our deepest sympathies go out to the family of the runner who tragically passed away after taking part at the event.
“The emergency services reacted to this terrible situation with great speed and professionalism. Everyone connected with the race is devastated.”
Run 4 Wales said further statements would follow.