UPDATE: Police say car was travelling in excess of 140km/h
UPDATE MONDAY 10.30AM: Police have confirmed the names of the three young men involved the crash at Bucca on Saturday night.
22-year-old Leith Wakeham, his brother Chris Holmes, 25, and their friend Simon Prideaux, 33, were killed instantly.
Flowers and tributes have piled up at the site of the crash.
Bundaberg Police traffic branch officer Marty Arnold said initial investigations had indicated "extreme high speed" was the main cause of the crash.
"The car has been travelling in excess of 140km/h," Sgt Arnold said.
"Trying to negotiate a bend at that high speed, the car has lost traction in the dirt and rolled a number of times before it hit the tree."
He added that the tragedy was all the more frustrating because it was preventable.
"Any time someone dies it's a tragedy, but the thing about those is, people have such poor judgement to drive in such a manner, especially so close to Christmas.
"It makes you wonder."
Sergeant Steve Webb expressed his frustration on the night of the accident, having attended more than 500 fatals in his 25-year career as a traffic policeman.
Police are pleading with drivers to slow down and concentrate in the light of four fatalities in the Bundaberg region over the weekend.
"It's no different than pointing a loaded gun around a corner and hoping nobody is there," Sgt Arnold said of the driving that caused Saturday's crash.
"There's no such thing as an accident."
Grieving friends attempt to assault police
THE site of the crash on Birthamba Rd was a scene of high tension on Saturday night and into Sunday, with police confirming that one grieving friend of the victims attempted to assault a police officer.
"A number of friends had shown up intoxicated and wanting to interfere with the bodies in the vehicle," Sgt Marty Arnold said.
"One of the drunken males had a swing at a police officer and he missed, luckily.
"Some of the behaviour was frankly disgusting, for lack of a better word," he added.
"We tried to calm the situation and convince them to go home.
"Under other circumstances they would have been arrested, but we took into account the extreme grief they were experiencing."
THE anger in Sergeant Steve Webb's voice was palpable as he addressed media last night at the scene of the horror crash.
Police have identified the driver and two passengers as part of their initial investigations into a single vehicle fatal traffic crash.
A 22-year-old Gin Gin man who was the driver and passengers, a 25-year-old Gin Gin man and 33-year-old Bundaberg man.
Hear Sgt Webb speak below.
The extent of the crash can be seen in this gallery.
UPDATE 10.40pm: Forensic crash investigator Sergeant Steve Webb has spoken following a crash that killed three men instantly at Bucca.
Sgt Webb said he had attended 500 fatal crashes in his 25-year career and said each one was a tragedy for emergency services.
"They (motorists) have to take responsibility not only for themselves, but their passengers as well and other road users," he said.
UPDATE 10.30pm: Bundaberg police have confirmed that the victims in tonight's crash were three young men.
A police spokesman said the vehicle they were driving lost control on a right hand bend and crashed into several large gum trees.
The Subaru wrapped around a tree.
The three men had been at a party and were on their way back from picking up takeaway pizzas from the South Kolan Pub, where they spent about ten minutes, when the crash happened.
UPDATE 10.20pm: Three men are believed to have been victims of the crash at Bucca.
UPDATE 8.45pm: A spokesman for Queensland Police Media has confirmed that Birthamba Rd is closed following the fatal crash.
He said police were still on scene.
Scene of Crime officers have also arrive at the scene of the crash.
Officers are combing the vehicle and the road.
UPDATE 8.30pm: A Queensland Ambulance spokeswoman has confirmed the deaths of three people in a single-vehicle crash at Bucca.
The spokeswoman said a call was made to ambulance crews at 7.10pm tonight after the car hit a tree.
"The vehicle was severely damaged," she said.
She said earlier reports that four people were involved in the crash were shown to be incorrect.
EARLIER: Three people have been killed in a horrific crash at Bucca tonight.
It is believed a single vehicle smashed into a tree on Bishop Drive and Birthamba Rd.
There are reports the car was on fire.
As of 8.30pm all ambulance crews had left the scene.
More to come