Two men have been crushed to death by a concrete panel that collapsed at a construction site at Eagle Farm Racecourse in the northern Brisbane suburb of Ascot, the Queensland Ambulance Service (QAS) says.

QAS spokesman Glen Morrison said a concrete wall in a construction pit collapsed onto the men about 4:00pm.

“It looks like they were undertaking some large construction work involving some large cement slabs,” he said.

“As a result of one of the slabs being moved, it’s crushed the two gentlemen who were down in a hole at the time.”

Mr Morrison said the slab was removed from on top of the men before paramedics arrived.

“We sent one of our staff down into where the two workers were to identify [them] and to see if we could render any aid.

“Unfortunately they were both deceased at that time – so very unfortunate and very distressing for the officers concerned.”

Mr Morrison said an investigation into the cause of the accident was underway.

“The Queensland Police Service are currently investigating but they were doing a lot of work with cement items, big cement blocks, at the time,” he said.

Mr Morrison said five to 10 other construction workers were in the vicinity when the accident occurred.

Paramedics have spoken to all of them and nobody has been transported to hospital.

The men were working on a $25 million development of 400 infield stables at the racetrack.

The project has been described by Brisbane Racing Club as the world’s first major stable complex to be constructed infield.

The men were working on a multi-million-dollar development of infield stables. Photo: ABC

-ABC