A 25-YEAR-OLD Irish national was killed in a quarry accident at Talgai about noon on Saturday.
Detective Sergeant Darren Tamblyn from Warwick CIB said the man was driving a front-end loader and had dropped a bucket of sand in a crushing machine when he got out to check it.
"It looks like the 25-year-old man had fallen in and died on the scene. He was found by the owner of the business," Det Sgt Tamblyn said.
The man lived on the property.
As it is a workplace incident, Workplace Health and Safety officers are investigating.
On Saturday afternoon, the man's mother was contacted by Warwick police through the Irish Consulate and Irish Police. His name has not yet been released.
Police, the Queensland Ambulance Service and the Queensland Fire and Rescue Service were at the scene.