Northern Ireland motorists travelling to Dublin today faced delays and disruption following a major multi-vehicle accident on the motorway into the city.
Two people sustained serious injuries following the five-car pile up on the M1 early today.
Early morning commuters faced delays and disruptions after the two consecutive accidents north of the Donabate/Swords exit on the southbound carriageway of the M1.
The first crash happened around 2.30am when an articulated truck collided with a car which is understood to have broken down on the motorway. Minutes later a transit van crashed into the back of the truck.
A passing motorist who had stopped to assist was then struck from behind by another articulated truck.
Two men, both of whom were drivers of the cars involved, were taken to Beaumont and the Mater hospitals.
A Garda spokesman said that the men had sustained serious injuries but could not comment further on their conditions.
He said that commuters travelling from Northern Ireland faced diversions from Walshestown roundabout, via the Old Swords by-pass.
He also said it could take some time before the road was cleared, as there was also a quantity of oil spilled which was in the process of being cleaned up.