Police arrested a man on suspicion of drink-driving after a road traffic collision near the Castledawson roundabout yesterday.
The 24-year-old was was detained at Glenshane Road, Magherafelt on Sunday morning.
A PSNI spokesperson said officers attended the scene after a car left the road and went into a ditch about three miles from the roundabout.
The driver and a passenger were taken to hospital. He was later bailed pending further police enquiries.