Gardai say they expect the truck that broke down on the N4 Inner Relief road in Sligo just after lunch today to be removed in the next half an hour.
It has been causing major delays for traffic going into Sligo.
Some motorist report that they have been delayed by 45 minutes.
It happened on the inner relief road at the junction with the Strandhill road.
Specialised tow equipment is at the scene and Gardai say they expect the road will be cleared shortly.
For the moment, however, motorists should allow extra time for their journey if using the inner relief road into Sligo this afternoon.