The outbound lane of the N4 from Sligo to Collooney has reopened to traffic following a two car road traffic collision.
The crash happened just north of Collooney at approximately 9:30am this morning.
Two people were taken to hospital as a precautionary measure.
Emergency services and Gardaí attended the scene and the road was closed for several hours.
The road reopened shortly after 3pm this afternoon.
Traffic was diverted via the N59 throughout the day and delays along this route have now eased.
Gardaí investigating the collision have made an appeal to the public for information.
Anyone who may have witnessed the incident or who may have dashcam footage is asked to contact Sligo Garda Station on 071 915 7000.