Dunedin Airport has reopened after the Defence Force 'neutralised' a hoax object on the airfield.

A police spokeswoman said diversions had been set up near the airport after a report of a suspicious package was made at 8.10pm.

Details remain scarce, but it was reportedly found in an out building at Dunedin Airport.

A source contacted the Otago Daily Times saying a "suspicious bag" had been seen in a navigation out building.

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The airport was closed and staff were sent home, the person said.

In a statement this morning, police said the Defence Force explosive ordinance team had "neutralised the hoax object" and the scene was secured.

The airport had reopened.

"Inquiries are ongoing to establish who left the object," said police.