Gardaí in the midlands are hunting a group of youths who caused serious disturbances on the M4 motorway in Co Westmeath early today.
The group of vandals dropped concrete blocks off a bridge on the new stretch of road between Kinnegad and Mullingar at around 3am, narrowly missing a number of passing motorists.
Gardaí in Mullingar are appealing for anyone with information on the incident to come forward.