A man has been killed after a bulldozer rolled at a cement site at the Port of Brisbane this morning.

Paramedics were called to Bulk Terminals Drive about 6.20am over reports a worker had been injured in a machinery incident.

Firefighters were asked to stabilise a rolled bulldozer as a recovery took place.

A bulldozer rolled, killing a man.© Nine

The man, who was in a life-threatening condition, was declared dead at the scene.

Aerial vision showed a bulldozer that appears to have crashed into another piece of large machinery.

The bulldozer was seen propped up by a jack.

The bulldozer was propped up by a jack.© Nine

Police are working with Workplace Health and Safety Queensland in their investigation.

“WHSQ inspectors are onsite and inquiries into the incident are underway, as this is an active investigation, no further comment can be made at this time,” Workplace Health and Safety Queensland said.

A report will be prepared for the coroner.