A man has been killed in a multi-vehicle crash on the far north coast that has closed a section of the Pacific Highway to traffic.
The death of the 23-year-old in Tabbimoble, about 80 kilometres north of Grafton, on Monday brings the state's holiday road toll to 10.
Police said the man was driving north on the Pacific Highway, about 1.5 kilometres north of the Iluka Road turn-off, when his Ford Laser and two other vehicles collided just before 10am.
Emergency services were unable to revive the young driver, who died at the scene.
An elderly couple in the second car were flown to hospital. Their injuries are not life-threatening.
Two other people in a third car involved in the crash were not injured.
The Pacific Highway has been closed in both directions near the Iluka Road turn-off in Tabbimoble while police investigate the cause of the crash.
North-bound motorists have been advised to use Summerland Way between Grafton and Casino and the Bruxner Highway between Casino and Ballina.
South-bound motorists have been advised to use the Bruxner Highway between Ballina and Casino and Summerland Way between Casino and Grafton.
"This diversion is suitable for all vehicles, however due to heavy north-bound traffic, motorists should allow at least 90 minutes additional travel time," a spokesman for the Transport Management Centre said.
Superintendent Bob Ryan, from the Traffic and Highway Patrol Command, said police would be out on the roads in force this New Year's Eve.
He said some irresponsible drivers had been flouting the road rules in recent days, including a 55-year-old man who was stopped in Crown Street in Wollongong on Sunday night.
The man had been banned from driving until 2035 and was allegedly drunk when police pulled him over.
"If you're planning to enjoy a drink or two to celebrate New Year's Eve then leave your car keys at home and take public transport or a taxi," Superintendent Ryan said.
"Drinking and driving is not only dangerous it is a criminal offence and no one wants to start 2013 with a criminal record or, even worse, the thought they've injured or killed someone in a traffic crash."