At least one person was taken to hospital however Gardai have said that there were no life threatening injuries involved in the incident.
Emergency services are at the scene of a multi-car collision along the N25 near Castlemartyr.
It is understood the N25 is blocked in both directions on the Midleton side of Castlemartyr while Gardaí and Fire Brigade deal with the collision.
The emergency call was made at 2.45pm today. Gardai have said three to four cars are involved in the incident and one person has been taken to hospital, although there is not thought to be any life-threatening injuries from the crash.
Diversions have been put in place and eastbound traffic is said to be slow on approach while westbound traffic is busy through Killeagh as a result.
The road is thought to remained closed to traffic until 6pm