A large truck has overturned on the N28 between Douglas and Carrigaline at the Shannonpark roundabout.
Gardaí were alerted to the incident around 11.50am.
No injuries were reported from the incident.
A crane was dispatched to the site of the incident to get the truck off the road.
The crane was expected to arrive around 3pm. The main road into Carrigaline is expected to remain closed for several hours.