Aerial footage shows flood scenes in Ceredigion
A major operation is under way in Ceredigion, mid Wales, to rescue people who have been stranded after serious flooding in the Aberystwyth area.
Many people had to be airlifted from four caravan parks. The Environment Agency has described it as "an unprecedented event".
Footage from RAF rescue crews shows the extent of the flooding at some caravan parks.
Cemlyn Davies and Craig Duggan reports.