The PSNI and the Department for Infrastructure have carried out investigations into a section of motorway on which two people lost their lives in single vehicle crashes in recent months.
Philip Rainey, 21, died following a crash on the M1 eastbound near Stangmore in Dungannon in September while he was on the way to collect his partner and new baby son from hospital.
Imelda Quinn, 40, died on Boxing Day when she is understood to have been travelling to Craigavon hospital where she worked as a nurse. The single vehicle collision took place between Junction 14 and 15 on the M1 eastbound.