Motorists are advised to expect delays due to a parade in Lurgan town centre this evening (Friday) between 7.30pm and 10.30pm.
Up to 60 bands and more than 10,000 members and supporters are expected at the Lurgan United Unionists event, according to the Parades Commission website.
Marchers will parade to and from Brownlow House and bands will include Craigavon Protestant Boys Flute Band, Upper Bann Fusiliers Flute Band and Armagh True Blues.
A police spokesperson has advised drivers to seek alternative routes if possible.