A man has been seriously injured in a road crash in south Derry.
The victim has been taken to hospital following the two-vehicle incident on the Gulladuff Road in Maghera in the early hours of Monday morning, sometime between 1.30am and 1.45am.
One man has been arrested and is currently helping police with their enquiries.
The road is expected to remain closed until mid-morning.
Officers have advised motorists to avoid the area if possible.
© UTV News