The young woman, who has not yet been publicly named, was a member of staff at the park who was working alongside others to clean out and perform maintenance work at the animal park in Chile at the time of the attack.
The park, called Parque Safari is situated in Rancagua within the O'Higgins commune.
The animals usually roam freely around the park, and often are seen climbing on heavily reinforced vehicles carrying the visitors to the park.
However, at the time the young woman was attacked, she was inside an enclosure where the tigers are kept whilst they're not out and wandering around the park, according to the Daily Star.
It is thought that the woman didn't realise that the door to the cage was left open, and she was immediately attacked by the tiger.
The animal bit her on the neck, which killed her almost immediately.
A Rancagua police officer, Williams Espinoza, said: "She did not realize that the door of the animal's cage was open and was immediately attacked by this tiger, causing her death on the spot."
The safari park has since been closed down and cleared whilst the police are at the scene conducting an investigation into what happened in the lead up to her death.
Jorge Mena, an employee from the regional office of public prosecutions, said that they will be launching an investigation into what happened in an effort to determine whether there is any third party culpability after the horrific accident.
It is not know what has happened to the tiger since the woman was attacked.
Parque Safari is described on TripAdvisor as 'one of the most spectacular zoo experiences' and features a small number of animals that are largely rescued.
The animals are left to roam freely across large enclosures whilst the visitors to the park interact with them whilst travelling around in 'specially conditioned vehicles'.
Money raised through tourism is then used to help out the Parque Safari's Rehabilitation Centre, which helps to rescue and provide medical care for wild animals across Chile.
Animals at the park include giraffes, antelopes, lions, tigers, and llamas, as well as a zip-line and a dinosaur experience.
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