Police are currently dealing with a crash which has occurred just outside Maghera.
The Five Mile Straight is currently blocked between Lisnamuck Road and the A6 Glenshane Road.
Police say there have been several severe smashes over the last few days and they are asking people to be wary when out driving.
“Keep your wits about you in regard to naturally greasy roads at this time of year caused by leaves, damp, mud, ice patches etc and always be alert to a stray animal or two popping out of the hedge,” said a police spokesperson.