AN estimated $3m of trailers went up in flames after a suspected arson attack outside a Blackwater mine late on Saturday night.
Police are appealing for information after two Drake low-loaders were extensively damaged by fire when they were parked near the entrance at Curragh Mine.
The fire occurred after 11pm with the vehicles sitting on the corner of the Blackwater-Cooroorah and Curragh Mine Access roads.
The unit on top was a 250-tonne mine-site transporter, and on the ground was a 10m x 8m steerable platform.
The vehicles were destined for Rockhampton so work could be undertaken on one of the machines which had a mechanical problem.
"All fires are treated as suspicious," the central region's top detective Inspector Cal Lynch said.
Blackwater police CIB officer-in-charge Detective Sergeant James O'Keeffe said it was not known whether the fire was the result of arson.
It is understood workers at the mine were the first to raise the alarm after seeing smoke coming from the area.
Both vehicles were badly damaged and remained on site as scientific officers continued their examination.
A spokesperson for Drake Trailers confirmed the damaged equipment was valued in the vicinity of $3 million to replace.
Investigations are continuing.
Anyone with information should call Crime Stoppers on 1800 333 000 or Blackwater police on 4982 5933.
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