PART of the main Derry-Belfast road will be closed on Sunday for "essential repairs in preparation for the winter period".
The A6 Glenshane Road will be closed between 7am and 6pm from its junction with Mullagh Road to the Castledawson Roundabout.
Traffic travelling towards Belfast will be diverted along Mullagh Road, Carricknakielt Road, Knockloughrim Link Road and Hillhead Road.
Vehicles making for Derry will be sent instead via Castledawson Road, Church Street, Union Road, Hospital Road, Magherafelt Road and Tobermore Road.
A spokeswoman for the Department for Infrastructure said road users should expect some delays and allow additional time when planning any journeys and gave "apologies for any inconvenience this road closure may cause".
More information can be found at www.TrafficwatchNI.com