The driver of a semi-trailer truck has died after it veered off a major Queensland, Australia motorway

A truck driver was trapped for hours after he horrifically plunged off a motorway. Police did not make the shocking discovery until the next day.

The driver of a semi-trailer that drove off the side of an elevated stretch of motorway and crashed has died after being trapped in the wreckage for 12 hours.

Authorities say the accident occurred at 11.30pm on Tuesday night on the Logan Motorway at Tanah Merah, south of Brisbane, but was not discovered until 10.30am yesterday (11.30am AEDT).

The truck was heading west on the motorway when it rolled down an embankment where the motorway passes over Slacks Creek, crashing into the ground below.

Police have now confirmed a 57-year-old man from New South Wales was pronounced deceased at the scene.

“At this point, we’re unable to determine the cause,” Acting Senior Sergeant Ben Reeve told journalists yesterday.

He added that the crash was first seen by someone walking. He said the truck would not have been visible to passing motorists.

“At this time it seems the truck has gone over the concrete barrier and then come to rest in the culvert,” he said.

“It would highly unlikely that motorists traveling at 100km/h to see that truck.”

Channel 9 helicopter vision from the scene on Wednesday afternoon showed the mangled wreckage and fire crews trying to access the cabin.

The destroyed Lindsay Transport semi-trailer was found surrounded by debris, having somehow come off the road.

Nearby residents told 9 News they heard a loud crash last night but could not see what had caused it.

It’s not yet know how the accident scene was discovered, given it was not visible except from above.

Queensland Police said eastbound lanes were closed with diversions in place at University Drive and Loganlea Rd.

Westbound lanes of the major motorway were down to one lane, with considerable delays in both directions.