Update M4:5 fire engines and 2 rescue tenders are now responding to the RTC on M4. RTC involving horse box which has come loose from vehicle
M4 Westbound blocked with queueing traffic due to several horses on road between J36 A4061 / A4063 (Bridgend / Sarn Service Area) and J37 A4229 (Pyle / Porthcawl).
Police have blocked the road, whilst the horses are rounded up.
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