NT Health Minister Natasha Fyles told media on Wednesday morning that a woman in her 50s had died on Tuesday night.

Ms Fyles said although the death was not COVID related, it would be investigated.

"Because it was an unexpected death within a government facility, appropriate steps have been taken," she said.

"The coroner has been notified and there'll also be an internal review."

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It is unclear whether the woman was a repatriated Australian or whether she was from within Australia.

"It's very tragic that that individual has passed away and I extend my condolences to her family and community," Ms Fyles said.

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