Gardai are investigating a robbery and assault which took place on the Waterford to Dublin motorway.
Shortly after noon on Wednesday three men in their 20s had pulled into the hard shoulder just south of Naas when they were approached by four men in a white golf.
The four men then assaulted them and stole a small quantity of cigarettes.
Gardaí have established that the white Golf had travelled from Tallaght before the robbery and then onto Tullow in Co Carlow where three men and a juvenile were arrested.
Three of the men were charged in relation to the incident and appeared in Naas District Court yesterday.
The motorway was busy at the time and Gardai are seeking witnesses to contact them.