Gardai are investigating an attack on a number of advertising signs on the main N56 road between Kilmacrennan and Illistrin.
The attacks happened in the early hours of yesterday morning, January 17th at around 2.20pm.
As well as being set on fire, the signs were sprayed with graffiti.
Gardai in Milford would like to hear form anyone who traveled along the main N56 road at this time and may have dashcam footage of the incident.