The road has been closed between the Tinryland junction and the M9 for a technical examination by Gardaí.
A cyclist in his 20s has been killed in a crash in County Carlow.
He's the second cyclist killed on the roads in the space of 24 hours.
This crash, involving a car and a cyclist, happened on the N80 at Kilmeany, just outside Carlow Town, at about 11pm last night.
The cyclist - a man in his 20s - was pronounced dead at the scene.
His body has been taken to Waterford University Hospital for a post-mortem exam.
No other injuries were reported.
The road has been closed between the Tinryland junction and the M9 for a technical examination by Gardaí.
They're appealing for any witnesses to come forward.
He's the 12th cyclist to die on our roads so far this year - and the second yesterday.
A man in his 80s was killed in a hit-and-run in Batterstown in County Meath at around 10am, with Gardaí urging anyone with information to contact them.

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