(CNN) A 10-year-old girl died after she was thrown from a ride Saturday at the Deerfield Township Harvest Festival.

The girl was ejected from a ride called "Extreme" at 6:18 p.m. and suffered serious injuries, New Jersey State Police said in a statement

She was airlifted to Cooper University Hospital, where she was pronounced dead at 7:20 p.m. The girl has not been identified and the cause and circumstances of her death are still under investigation, police said.

Police said the "Extreme" is a Wisdom Super Sizzler amusement ride that spins passengers in a horizontal circle.

Skelly's Amusements , the company that operates rides at the festival, said it was fully cooperating in the investigation, in a statement posted on Facebook.

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