Emergency services are dealing with four separate crashes on the M50 in Dublin.
Three lanes are closed on the southbound lane just before the exit for Ballymun, and it is understood that a number of vehicles are involved.
While on the northbound lane there are three separate incidents just after the Blanchardstown, Finglas and Ballymun exits.
Gardaí are reporting major delays as a result of these collisions and are asking drivers to take care on approach.
None of the incidents are believed to be serious.