An 18-year-old man has been arrested on suspicion of dangerous driving following a crash that left a teenage girl in a critical condition. The collision happened on the Slaughterford Road in Whitehead on Monday night.
The 17-year-old girl, who remains critically ill, has been named locally as Morgan Horner from the Carrickfergus area.
The Ambulance Service was called to the scene at 9.20pm on Monday.
Four ambulances were sent along with one rapid response paramedic and a doctor.
The young girl was taken to the Royal Victoria Hospital along with two others, who were also in a serious condition, following the collision between a four-wheel-drive vehicle and a hatchback.
A further two patients were taken to Antrim Area Hospital suffering from injuries which are not thought to be life-threatening.
The 18-year-old man was arrested yesterday on suspicion of dangerous driving causing grievous bodily injury.
Police said the man, who was believed to have been driving a silver Vauxhall Corsa at the time of the incident, is currently assisting them with their enquiries.
Shortly before 9pm on Monday, it was reported that a black Hyundai Santa Fe and a blue Renault Clio were involved in the serious road traffic incident.
Both vehicles were badly damaged in the incident, with the smaller Renault hatchback bearing the brunt of the impact.
It is thought all of the most seriously injured were in the Clio, which was almost unrecognisable after the crash.
Police confirmed a 17-year-old female, believed to be a passenger in the Renault, was taken to hospital for her injuries.
A 39-year-old woman was taken to a nearby hospital for injuries that are not believed to be life threatening and a 17-year-old youth was also taken to a nearby hospital.
A local resident, who did not wish to be named, said he had "never seen anything like it" on that particular stretch of road.
"There was one car which was quite mangled," he said.
He added: "There should be lights or something put there, because it's a tight bend.
"The road starts at 30mph and when you get to the top it's 40mph, so people are inclined to speed on it.
"I've never seen anything like it on that road ever," he said.
Independent councillor Jim Brown said the road has had improvements made to it over the years.
He said: "It's not the best road. There have certainly been some improvements made but it's a difficult junction.
"It would take some care to navigate it."
The crash comes just days after a popular 18-year-old girl from Portavogie became the latest victim of Northern Ireland's roads.
Shannon Reid died on Sunday when the silver Peugeot she was driving on the Portaferry Road collided with a blue Audi.
The two passengers of the Audi were treated for minor injuries. On the same day another young woman in her 20s was being treated for serious injuries after a single car collision on the Lisnaskea Road in Co Fermanagh.
The accident at the weekend has brought the total number of deaths on the roads so far this year to 49 – 13 more than at the same time last year.
Police would like to speak to anyone who saw the crash on Monday night.
They are asking witnesses to contact them in Newtownabbey using the non-emergency number 101.
A tragic spate of road deaths and collisions in Northern Ireland means this year has so far surpassed the number of fatalities in the same period in 2013. The PSNI has said the upsurge in road deaths across Northern Ireland this year should act as a wake-up call for drivers.
From January until August 11, 2013, PSNI statistics show that 36 people died on the roads here. Over the same period this year, 49 people have died.
In June, a shocking road safety advert issued by the DOE to combat speeding went viral on the internet.