The Westport Road outside Castlebar has now closed to traffic this morning following a two-car collision.
The N5 is closed between Castlebar and Westport at Ballymacragh following a collision.
It will likely remain closed until 4pm this afternoon.
Diversion route from Castlebar to Westport is via R311 Newport Road, and onto N59 from Newport to Westport.(And vice versa).
This is the route for HGV traffic, as other routes are narrow, and have restrictions such as bridges etc.
Note that the R330 from Partry to Westport road may be used only for cars and light commercial vehicles, as there is a railway bridge with restricted height on this route near Westport.
Traffic should avoid local roads if possible as they are not capable of taking heavy traffic, and will become blocked, and will cause long delays.
Persons doing exams should allow extra time for travelling.