There has been a serious road collision in the Crescent Link area of Derry.
A number of vehicles were involved in the crash close to the Crescent Link Retail Park.
The emergency services are currently at the scene and there are no further details.
There are long tailbacks and motorists are being urged to avoid the area.
The PSNI said there are diversions are in place at Caw roundabout and Premier Inn roundabout.
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.