It has been confirmed the workplace fatality yesterday happened on a construction site at the Tindal RAAF Base.
Police and WorkSafe NT yesterday said the tragic accident happened at Katherine but that was later amended to the Katherine region.
An investigation is continuing into the cause of the death of the 37-year-old man.
Initial reports state the man died after apparently falling from the tracks of an excavator.
The fatal accident happened about 7.30am yesterday
NT WorkSafe and Northern Territory Police are investigating the circumstances. Police will prepare a report for the Coroner.
NT WorkSafe said the "root cause of this tragic incident" is still unknown.
The Tindal base is the location of a massive construction upgrade with more than $1 billion being spent over the next decade by the Federal Government.
The US military is also building weapons and fuel storage facilities at the base.
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