Mid & West Fire and Rescue Service have attended 15 properties this afternoon due to flash-flooding.
The first call was received at around 2pm. There are currently no reports of evacuations, and nobody is injured.
Traffic is easing after thye earlier accident on the M4 Eastbound between J33 A4232 (Cardiff West And Services) and J32 A470 / A4054 (Coryton Interchange).
Traffic has returned to normal after an earlier accident on the M4 Westbound at J34 A4119 (Miskin).