A group of amusement park visitors were injured Saturday evening in a Universal Studios tram accident near Los Angeles.
The Los Angeles County Fire Department was dispatched shortly after 9 p.m. PT Saturday and transferred 15 patients to hospitals with minor injuries.
The California Highway Patrol said a tour was underway at the studio in Universal City and the tram was making a turn following the "Jurassic Park Cars" attraction.
"Due to unknown reasons, while negotiating the turn onto Avenue M, the last car of the tram collided with a metal guardrail on the right side of the roadway causing it to tilt and eject multiple passengers from the tram," the agency said.
The injuries were evaluated as "minor to moderate," the highway patrol said. Neither drugs nor alcohol are being considered as factors.
A spokesperson for Universal Studios Hollywood confirmed the accident in a statement but provided no details about the circumstances.
"We are working to support our guests and understand the circumstances that led to the accident," the spokesperson said.
Universal Studios is owned by NBC News’ parent company, NBCUniversal.
According to the park’s website, the tram tour is set to celebrate its 60th anniversary Friday.
The Universal Studios Tour offers park visitors a chance to ride a tram through behind-the-scenes locations of some of the studio's famed films while tour guides impart some of the history of the lot.
Many of the locations are still used for filming, so the locations may change. A consistently popular attraction includes re-creations of scenes such as a "Jaws"-style shark attack.