(Above: A portion of the scene earlier today at 5.00pm)
UPDATE @ 18.30
Traffic has cleared around the scene of the accident.
There were major tailbacks immediately after the accident earlier today and the N13 Road to Ballybofey was partly closed along with one lane on the Dry Arch Roundabout.
Emergency services attended the scene though it remains unknown if anyone was injured.
Gardaí and ambulance are at the scene of a serious road traffic accident by the Dry Arch Roundabout, Letterkenny.
The accident is understood to have happened at around 4.30pm, involving two cars and a van towing a trailer.
It is not yet known if anyone has been seriously injured.
One lane on the roundabout has been closed and motorists are being warned to prepare for delays in traffic.
More to follow.
If you have a story or want to send a photo or video to us please contact the Donegal Now editorial team. Between 9am and 5pm Monday to Sunday please call 074 9112712. Between 5pm and midnight please call or text 086 792 2103. Or you can email [email protected] at any time.