MONDAY 4.15PM: Australian Transport Safety Bureau investigators are yet to rule on the cause of a coal train derailment west of Toowoomba on Friday.
The rail line 9km west of Oakey towards Jondaryan remains closed as a recovery plan is developed to clear the wagons which derailed about 4pm.
A spokesman from the ATSB told The Chronicle the matter remained under investigation but confirmed the incident at an "occupational level crossing about 38 track kilometres north-west of Toowoomba" had caused extensive damage to the line.
"Both leading locomotives and 21 of 41 wagons derailed, resulting in significant track damage," the spokesman said.
"No injuries were reported to the ATSB."
Three investigators were on site at the weekend and used a drone to survey the site.
Investigators are yet to rule on the cause of the incident.
Queensland Rail CEO Nick Easy said the rail line was expected to remain closed until later this week while the wagons were recovered.
SUNDAY: Investigations are continuing into the cause of a freight train derailment which closed a rail line and suspended services west of Toowoomba.
The Australian Transport Safety Bureau is working with Queensland Rail after 18 coal wagons derailed between Oakey and Jondaryan on Friday.
Queensland Rail CEO Nick Easy said the cause of the Aurizon train derailment was currently under investigation.
"The train was loaded and travelling towards the Port of Brisbane carrying 41 wagons, 18 of which derailed," he said.
"All freight and passenger services through the area are currently suspended.
"The Westland that was in service terminated at Dalby, and buses transported customers to Brisbane.
"We are currently working with the rail operator, police and the ATSB to conduct an investigation into the cause and planning recovery and repair works."
About 300m of the rail line will need to be repaired or replaced, and the loaded coal wagons are yet to be recovered.
The line remains closed and as a result caused the Westlander passenger service to be terminated at Dalby with travellers bussed east on Saturday.
According to 7 News, the derailment was caused by a kink in the line.
The train driver escaped without injury.
Queensland Rail has been approached for comment.
FRIDAY: A coal train has derailed west of Toowoomba which has blocked the rail line.
Police were alerted to the incident in which 18 wagons derailed about 4.30pm between Oakey and Jondaryan.
The coal train had been heading east and was travelling on an open section of the rail line.
The train driver is not believed to have been injured.
Police and Queensland Rail remain at the scene and the line is expected to be closed into tonight.