"The park area has been completely cut off for visitors," it said. "All the teams join the family to express their deep sadness following this event."
Saturday was the fourth serious incident on the same ride since 2005, and the second fatality.
According to French media, a 35-year-old woman died of cardiac arrest after being flung from the coaster in 2009. Operators were not held liable after an investigation deemed the rider's "inappropriate behavior" to have been the cause.
However in 2007 the park's director Gilles Campion — who still serves today — was given a suspended four-month sentence and ordered to pay thousands of euro in damages when 15 people were hurt in two separate incidents just one month apart.
In August of 2005, four people were injured when a car derailed an slammed into a metal pole, just one month after 11 more people were hurt in a similar incident.