A police spokesman yesterday said emergency services were notified about the accident, which involved a party of three, about 12.50pm.
One person had been fatally injured as a result of the sudden rockfall on Tuesday, the spokesman said.
Police worked with the Rescue Co-ordination Centre and pilots to reach the group and safely recover the body.
WorkSafe yesterday confirmed it had opened an investigation into a workplace fatality in Fiordland on Tuesday.
"We understand the worker was undertaking geotechnical work at the time.
"As an investigation has now been opened we can’t provide any further comment."
The Otago Rescue Helicopter was called to an accident in Manapouri about 1pm.
It was logged on the organisation’s website as an accident. However, the log also stated the mission was stopped.
Police said they were making further inquiries into the circumstances of the person’s death, on behalf of the coroner.
