The deaths of a 17-year-old boy in Co Derry and a woman (24) in Co Donegal has brought the death toll on Irish roads this weekend to eight.
The boy was killed in a collision on the Tobermore Road at Draperstown yesterday afternoon.
A short time later a woman was killed in a two car crash in Co Donegal on the main road between Donegal town and Killybegs.
The driver of a second vehicle, a man in his 40s, suffered serious injuries and was taken to hospital in Sligo.
A man and a woman were also killed in a two-vehicle collision in Derry yesterday morning. A third person was taken to hospital suffering from shock following the crash on the Culmore Road at 9.20am.
A woman (21) also died in a single vehicle crash in Co Limerick yesterday. The incident occurred on the Newcastlewest to Dromcoliher Road just after 1pm. The woman was a passenger in the car.
A man and a woman were killed when two cars collided head-on outside Ballymena, Co Antrim in the early hours of Saturday morning.
Another man was serious injured in the collision which occurred on the Frosses Road near Glarryford at around 2am.
In a separate collision, a 19-year-old man died when the car he was travelling in collided with another vehicle near Newcastle, Co Down.
It is understood the victim was a passenger in the car when it crashed on the Castlewellan Road at around 10.20pm on Friday night.