NZ Prime Minister confirms he's 'not an alien'

New Zealand's Prime Minister John Key has officially confirmed he is not a reptilian shapeshifting alien.

In a peculiar press conference, Mr Key was forced to publicly deny rumours of a suspicious double life after an official request was made to his office.

Auckland man Shane Warbrooke made a freedom of information request asking for: "Any evidence to disprove the theory that Mr John Key is in fact a David Icke-style shapeshifting reptilian alien ushering humanity towards enslavement."

While the leader's office could not provide answers, Mr Key did not shy away from the media.

"I've taken the unusual step of not only seeing a doctor but a vet, and both have confirmed I'm not a reptile," he told a press pack in Parliament House.

"I've never been in a spaceship, never been in outer space, and my tongue's not overly long either."

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Mr Warbrooke, a writer and musician, said he posed the question as a joke alongside "other more serious requests as part of his research into UFOs".

He told 3News he was happy with the Prime Minister's response but frustrated his staff had "waited the full 20 working days they are allowed before getting back to me".

Source: 3News.