Gardai in Carrick-on-Shannon are investigating two fires that occurred in close proximity in the town last Sunday night, August 25.
A car was burned out at the rear of The Bush Hotel while a fire also broke out on the nearby construction site of the new medical centre in the town.
Carrick-on-Shannon Fire Service attended both scenes.
Gardai say they are examining the town's CCTV system and are following a number of lines of enquiry.
They are appealing for any witnesses who saw anyone acting suspiciously in the vicinity last Sunday night to contact them in Carrick-on-Shannon on 071-9650510.
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.