UPDATE: One lane of the Gore Hwy has reopened to traffic as crews clear the scene of a fatal truck crash.
Darling Downs District Country Patrol and Support Services Acting Inspector Scott Stahlhut said the B-triple truck had been removed from the crash scene and one lane of the highway has re-opened.
The highway had been closed for emergency and transport services to clean up the area following the substantial diesel leak at the scene.
"The clean-up is substantially complete and the highway has opened to traffic north and south," Act. Insp. Stahlhut said.
"The diversions have also been removed."
The crash claimed the life of a 62-year-old Goondiwindi man.
Investigations into the crash are continuing.
TUESDAY 2.45PM: The Gore Hwy will remain closed indefinitely as emergency services clear the scene of a horrific truck crash this morning.
A 62-year-old Goondiwindi man, with years of experience driving trucks, died at the scene when his truck left the road and became wedged in a ditch.
The B-triple diesel tanker leaked extensive quantities of fuel, complicating the recovery mission for emergency services.
Diversions were put in place - and will remain there - until the scene is cleared.
Darling Downs District Country Patrol and Support Services Acting Inspector Scott Stahlhut said the substantial diesel spill posed environmental concerns for the surrounding land, and the soil would need to be removed from the area.
"This will take some time before the prime mover and trailers are removed from the crash site," he said.
"Once that has happened, the contaminated soil must be removed and because of the potential environmental concerns, the diesel-soaked soil has to be removed."
Diversions will remain in place while the earthworks are carried out.
Act. Insp. Stahlhut said the 62-year-old driver was an experienced truck driver with years of industry experience.
"Police understand the driver to have been involved in the industry for many years and to have had a reputation for being a professional operator," he said.
"The Forensic Crash Unit conducted an on-site investigation into the crash, and investigations are ongoing and will take some time."
TUESDAY 10.30AM: Emergency services will decontaminate the scene of a fatal rollover south of Toowoomba this morning.
Darling Downs District Country Patrol and Support Services Acting Inspector Scott Stahlhut said thousands of litres of diesel had spilled into the roadside as a result of this morning's fatal traffic crash.
"Quite an amount of fuel has escaped from one of the tankers and as a result, the road will be closed for some time, if not most of the day," he said.
"Because of the loss of fuel, Queensland Fire and Emergency Services will be doing a recovery of the fuel from the soil to ensure the environmental damage is limited.
"Diversions are in place and will remain in place."
The highway will remain closed for most the day.
Act. Insp. Stahlhut said next of kin of the 62-year-old Goondiwindi man that died in the crash had been notified.
"Police investigations are ongoing and the Forensic Crash Unit is here on scene as well," he said.
The triple combination fuel tanker had been carting diesel south along the Gore Hwy toward Goondiwindi when it left the road and became wedged in a drainage ditch about 4.30am.
An extensive clean-up mission was under way mid-morning.
TUESDAY 8.40AM: The Gore Hwy south of Pittsworth remains closed this morning after a fatal truck crash.
A Queensland Ambulance Service spokesman said the driver of the fuel tanker, a 62-year-old man from Goondiwindi, was pronounced dead at the scene.
It is believed the tanker crashed into a ditch about 10km south of Pittsworth on the Gore Hwy.
A Queensland Fire and Emergency Service spokeswoman said the report of the crash came in at 4.28am.
Crews arrived to find the tanker had jack-knifed into a ditch and some of the 84,000ltr load of diesel was leaking.
Fire crews were successful in blocking the leak but remained on scene cleaning up the area.
The highway is expected to remained closed throughout the morning and drivers are asked to take alternate routes.
The police forensic crash unit will investigate the cause of the accident.
Truck rollover Gore Hwy 10km south-west Pittsworth. Highway is blocked & is expected to be for sometime. Seek alternate route #qldtraffic— QPS Media Unit (@QPSmedia) August 31, 2015
Update your news preferences and get the latest news delivered to your inbox.