One lane is blocked after an accident on the A4232 inbound at the A48 Cowbridge Road West / A4050 Port Road (Culver House Cross).
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The team, which is manned by volunteers, will operate out of Pontardawe Fire Station in partnership with Mid and West Wales Fire Service.
Dan Biggar has no doubt that Wales remain flrmly in the Six Nations title mix ahead of next Saturday's clash against Scotland.
Heartbreak for the Ospreys as Munster snatch victory from the jaws of defeat with late Dave Kilcoyne try.