Two killed in horror smash at Woodburn

Update 5.26pm WITH the Pacific Highway still closed in both directions, police have released details of the accident that occurred just after 11am this morning.

The collision involved three vehicles - a southbound B double truck, a southbound 4WD towing a caravan and a northbound 4WD towing a trailer.

The media report stated that the male driver of the northbound 4WD and a female passenger of the southbound 4WD both died at the scene.

"Two other people - a female passenger in the northbound 4WD and the male driver of the other 4WD - have been transported to hospital with serious injuries," the report said.

"Three children from the northbound 4WD sustained minor injuries.

"The male driver of the B-double was uninjured."

Original report. TWO people are dead and five are injured in a horror smash on the Pacific Highway, two kilometres north of Woodburn just after 11am this morning.

Two utilities, one towing a trailer and the other towing a caravan, and a b-double collided on the wet roads causing the Pacific Highway to be closed indefinitely at this stage.

Three children involved in the accident have been taken to Lismore Base Hospital and two people were being treated at the scene.

The accident is being attended by Woodburn RFS volunteers, Woodburn SES volunteers, Evans Head Fire Brigade, NSW paramedics, Westpac Life Saver Rescue Helicopter and NSW police.

NSW police acting duty officer Virginia Szaak said they were still investigating the cause of the accident.

" The Crash Investigation Unit is on the scene at the moment," she said.

Debris including drink  bottles, a childs seat and pieces of what's left of the caravan is strewn across the road.

Northern Rivers Rural Fire Service superintendant Boyd Townsend said it was one of the worst accidents to occur.

"It's as close to as bad as it gets," he said.

Traffic is being diverted via the Bruxner Highway and Summerland Way and many trucks were simply waiting out the closure.

"If you have to wait, you have to wait," truck driver Shane Harward said philosophically.

"Two people are dead... that's what makes me sad."