The Pride of The Orange and Blue Flute Band's annual parade will be held in Newbuildings this evening (Friday).
Twenty-five bands are expected to take part in the main parade through the village at 8:30pm.
The PSNI have advised motorists to expect some delays.
A PSNI spokesperson said: “Band parades are scheduled to take place in Newbuildings on Friday evening, September 5 - the first from 7.30pm to 8.15pm and a second, larger parade from 8.30pm to 11.00pm.
“Diversions will be in place, via Donemana. Please plan ahead, and allow extra time for your journey.”
The public are also being advised of the potential for some disruption during a march and rally in support of a planned ‘Global Day of Action for Gaza’ in Derry on Saturday.
The PSNI spokesperson continued: “On Saturday, September 6, there is a planned march in the city centre with participants scheduled to move off from Bishop Street at 2.00pm, making their way through The Diamond towards Guildhall Square with dispersal from there at 3.45pm.
“Please be aware of some traffic delays as they take place, and drive with extra caution.”
Subscribe or register today to discover more from DonegalLive.ie
Buy the e-paper of the Donegal Democrat, Donegal People's Press, Donegal Post and Inish Times here for instant access to Donegal's premier news titles.
Keep up with the latest news from Donegal with our daily newsletter featuring the most important stories of the day delivered to your inbox every evening at 5pm.