There were extremely heavy tailbacks, especially on the Boyle Road, throughout the weekend, when the Carrick Carnival was on.

The driver of the car, a man aged in his teens, was seriously injured during the collision.

Brian Beirne used his tractor to tow the stuck vehicles on to level ground, clearing the blockages and resuming the flow of traffic.

Gardaí are urging motorists to continue to drive with extreme caution overnight.

The motorist subsequently tested positive for cocaine in a road side test and also had a child in the front passenger seat.

One person was removed from the scene to Sligo General Hospital with serious but non-life threatening injuries.

The vehicle was detained and court proceedings are to follow.

The driver was arrested and the vehicle was seized.