Ten people were hurt when two cars on the Pony Express roller coaster collided during Thursday night's Halloween Haunt at Knott's Berry Farm.
The Buena Park theme park guests were treated at a hospital for minor injuries. Three were 12-year-olds and the rest were adults, according to Orange County fire officials.
The 8:15 incident involved a car that was leaving tbe boarding station rolling backward and hitting another car guests were entering.
A team of 25 firefighters from the Orange County and Anaheim fire departments responded to the call.
The park has never had a problem with the ride since it opened in 2008, according to a Knott's spokesperson.
Here's how the park describes the ride:
Named after the famous Pony Express which promised a faster mail service
on the North American continent, Knott's Pony Express delivers a
horseback relay at speeds never imagined in the Old West! While sitting
astride one of the team's 16 horses, riders leave their post with their
steed launching them at a speed of 0-38 mph in less than 3 seconds. The
team covers a 1,300 foot route which takes them past Boot Hill and Big
Foot Rapids resulting in an exhilarating runaway adventure!