Washington, Jul 27 (IANS): One person was killed when a ride malfunctioned during opening day at the annual Ohio State Fair, US officials said.

Ohio State Highway Patrol Superintendent Col. Paul A. Pride told CNN said seven other people were injured on Wednesday evening, three of whom are in critical condition.

The ride, called the Fire Ball, consists of at least six rows of seats that spin around as the entire structure moves like a pendulum.

The ride's operator -- Amusements of America -- says the Fire Ball swings riders 40 feet above the midway while spinning them at 13 revolutions per minute.

The "aggressive thrill" ride debuted in 2002 and has become one of its most popular thrill rides, according to the company.

A video posted online appears to show several people on the ride seconds before parts of the structure break apart.

An eyewitness told CNN: "The ride had four riders per cart. This piece snapped off and the riders came out of the cart."

"At least two (people) flew through the air at least 20 feet before landing on their backs on the concrete."

Ohio Governor John Kasich has ordered all fair rides to be shut down until additional safety inspections were completed.