ANAHEIM, Calif. (AP) - An accident on Disneyland's Big Thunder Mountain Railroad roller coaster killed a 22-year-old man and injured 10 other riders.
The ride's locomotive separated from its train inside a tunnel and derailed Friday, but officials did not know whether that caused the accident or was the result of it.
One of the other victims had moderate injuries and the other cases were considered minor. Six were taken to the University of California Irvine Medical Center, two were taken to Western Medical Center and two were treated at the scene and released.
Some passengers were able to evacuate the ride on their own, so the total number of riders was not immediately known.
It was not known how the locomotive became disconnected. The train cars behind the locomotive remained on the track.
The ride is designed to look like an old fashioned locomotive pulling cars, which can hold as many as 32 people.
The death was the 10th at the park since it opened in 1955, said police Sgt. Rick Martinez. Not all the deaths have been ride-related.
The computer operated roller coaster takes visitors on a twisting, turning ride aboard what is supposed to be a runaway train in the Old West. Riders zoom through mineshafts and caverns, past falling rocks and tumbling waterfalls.