LOS ANGELES (CBSLA.com) — A 10-year-old girl has died after she was found unconscious on a Six Flags Magic Mountain roller coaster, officials said Monday.

On Friday, Jasmine Martinez returned to the “Revolution” ride’s loading dock breathing but unconscious, according to Los Angeles County Coroner’s officials.

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Paramedics were immediately called to the scene.

Firefighters indicated that Martinez had an altered level of consciousness. She was subsequently taken via airship with a parent to Northridge Hospital, which confirmed Monday that she had been transferred to Cedars-Sinai Medical Center over the weekend.

The Revolution ride is described on the park’s website as the first roller coaster to feature a full vertical loop. The attraction is made of steel, hits 55 mph and goes up a 113-foot hill.

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It was not immediately known whether Martinez’s death was related to the ride.

A spokesperson for Six Flags released the following statement Monday: “Jasmine came into the ride station unconscious and was treated at the scene and airlifted immediately to an area hospital. Over 45 million guests have safely ridden Revolution since it opened in 1976.

“There is no evidence to suggest that this was in any way ride related.”

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The Revolution ride has been temporarily closed pending a review, according to Six Flags.