Emergency officials say two monorail trains crashed in the Magic Kingdom section of Walt Disney World, killing one train's operator.
Bo Jones, deputy chief for Reedy Creek Fire Department, says one train operator died at the scene of the crash, which happened around 2 am (0600 GMT) on Sunday. The other train operator was not injured, but was taken to a hospital because he was emotionally shaken. Five park guests were treated at the scene.
Jones says it is unclear what caused the crash. Orange County Sheriff's officials are investigating the cause.
Jones says the crash happened at the park's ticket and transportation center. About a dozen guards wearing blue Disney security uniforms guarded the monorail station on Sunday morning and prevented visitors from approaching the area.
Ethan Meus, who was visiting the theme park said he and his family took the monorail to dinner at a resort hotel on Saturday night. Meus, 17, watched the Magic Kingdom fireworks from the monorail on the way back to his hotel, he said, and didn't notice any problems with the train.
"It's pretty shocking to hear that a driver was killed in that accident," Meus said.
The family was planning to take the train again on Sunday to visit Disney's Epcot Center, but now planned to take a bus, Meus added. "You would think it would be so safe," said 20-year-old Lauren Shoebottom, who was visiting the park from London. "You don't expect it on holiday, do you?"
Walt Disney World vice president of public affairs Mike Griffin issued a statement offering condolences to the employee's family and saying the monorail was closed.
"It's a bit shocking," said 22-year-old Danielle Williams, of London. "Disney seems so perfect."