The road at Finnegan's Cross at Kilcummin has reopened following a two-vehicle collision.
The collision occurred just after 11am.
Gardaí, emergency services and two helicopters attended the scene.
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Gardaí have confirmed that some of those involved were airlifted to hospital, but it's not believed anyone has sustained life-threatening injuries.
The road was closed for a time, but it has since reopened.