The main N11 is closed off just past the Ferrycarrig Hotel to Kyle's Cross.
Gardaí are at the scene and diversions are in place.
The road is expected to remain closed for a few hours.
Meanwhile,
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A JCB has gone on fire on the N25 between Waterford and New Ross at Glenmore.
Gardaí have just arrived on the scene and say no one was injured.
