TWO tourists have died in a horror crash on the Sunshine Mwy.
The men, both from interstate, were killed when their 4WD went out of control at the Yandina-Coolum roundabout shortly after 10pm Saturday.
The men's wives, who were in the vehicle with them, survived the accident.
The two couples are believed to have been travelling together on a round-Australia trip and were heading to their Noosa accommodation when the crash happened.
It is believed a lack of local knowledge may have meant the driver of the 4WD, a 63-year-old West Australian man, was unaware of the roundabout and did not see it until it was too late.
He was killed instantly and one of the rear seat passengers, a 69-year-old South Australian man, also died at the scene.
Their partners, a 54-year-old WA woman and a 68-year-old SA woman, suffered serious but non life-threatening injuries and were taken to Nambour General Hospital.
No information was available on their condition last night.
A Tewantin motorist, who came across the crash, described the scene as "eerie".
"There was a bit of mist or fog around," he said.
"I could see where the tyres hit the mound on the roundabout ... it looks like they didn't know it was there.
"As soon as I saw the wreckage I knew it was a fatal ... there was debris all over the road.
He said the scene was a hive of activity as paramedics and firefighters freed the occupants of the vehicle and fought to revive the two men.
"It was pretty full-on... it felt strange to be there," the man said.
"I've never seen a car crash like that before. It was brutal."
Officers from the Forensic Crash Unit returned to the scene yesterday to continue their investigation.
In the light of day, tyre marks were clearly visible leading to where the car crashed into a large mound on the roundabout.
Anyone with information that could assist police with their investigations should contact Crime Stoppers on 1800 333 000 or crimestoppers.com.au.