The scene at Culmore.
The security forces are currently carrying out an investigation in the Culmore Point area of Derry.
Several police vehicles are at the scene.
There are no further details yet about the ongoing operation.
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.