The PSNI has warned motorists be warned about severe traffic disruption along the main N2/A5 Dublin - Derry road near Aughnacloy for a march today.
Traffic will be diverted away from Aughnacloy between noon and 5pm.
Signage will be in place directing traffic towards an alternative route.
Motorists travelling to the 2006 All Ireland Fleadh in Letterkenny today should consider taking an different route across the border.