Flooded river rescue simulated in Cardiff Bay

Emergency services are taking part in a major exercise to replicate serious flooding across south Wales.

Exercise Polygon has set different scenarios - including people trapped in homes in a flooded Cardiff and concerns over high water levels at the Pontsticill dam above Merthyr Tydfil.

As well as fire and rescue, police, lifeboat and ambulance crews, mountain rescue and the RSPCA are involved.

Here is footage of Mid and West Wales Fire and Rescue involved in a flooded river rescue exercise, simulated at the white water rafting centre in Cardiff Bay.