By Maria McCann
Four people are being treated in hospital in Belfast after a crash just outside Castlewellan.
A fifth person involved in the two vehicle crash on the Bryansford Road remains in a stable condition in Daisy Hill Hospital in Newry.
The Belfast Health and social care trust says three of the people involved are in a critical condition in the Royal Victoria Hospital.
A grey Ford Mondeo and silver VW Golf collided in the Kilcoo area around 11.30 on Wednesday night.
Sergeant Wallace said: “We are appealing to anyone that may have witnessed the collision to contact Downpatrick Police Station on the non-emergency number 101."
Mike Nesbitt to step down as UUP leader
Whole island of Ireland under weather warning as wintry conditions sweep
Bid to bring historical treasures from birth of US to Belfast for exhibition
Police investigating Arson Attack in North Belfast
McIlroy honours omission came despite Stormont nomination