Four dead following weekend collisions in Kerry, Louth, Mayo and Roscommon

A rose marks the location of a fatal road traffic collision in Co Kerry, one of four over to occur across the country in the last three days. Picture: Domnick Walsh 

Four people have died in four separate collisions since Friday night, bringing the number of deaths on Irish roads this year to 143. 

The latest incident occurred in Dundalk when a pedestrian died after he was struck by a vehicle in the early hours of Sunday morning on a motorway.