YORK COUNTY, S.C. -- A Carowinds spokesperson says it was human error that caused a rollercoaster mishap on Saturday.

Seven park employees were hurt after the seats on the Borg Assimilator suddenly flipped to an upright position during the ride.

Eyewitness News has learned that the ride operator accidentally pushed a button that unlocks the seat position.

A Carowinds representative said the problem has been fixed so now if the button is pressed during the ride, the seats won't unlock.

Officials are hopeful the ride will be open on Saturday.

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