A crash on the M50 is causing headaches for motorists this morning.
The AA has said there are long delays southbound between the Blanchardstown and Lucan junctions.
The left lane is blocked by a truck under the flyover, while the on-ramp is partially blocked from the N4 Lucan Road inbound onto the M50, and all lanes are affected by debris.
The queue on the Lucan Road inbound for the M50 is backed up to the Fonthill road junction.
Emergency services are at the scene of the crash.