(CNN) -- Two monorail trains at Walt Disney World collided early Sunday, killing a 21-year-old driver.
A 2 a.m. ET monorail crash at Disney World killed one person, a park spokesman said.
A witness said one of the trains rammed into the back of a stationary train about 2 a.m. at the resort's Ticket and Transport Center.
There were eight people on board at the time, the Orange County Sheriff's Office said.
A second employee was taken to a hospital to be checked; the six guests -- members of a single family -- were evaluated by paramedics at the scene and released. Disney World officials said none of the seven was injured.
Authorities identified the driver as Austin Wuennenberg. According to his page on LinkedIn.com, the Stetson University student expected to graduate in 2010.
"It's a terrible day for us," said Mike Griffin, Disney's vice president for public affairs. "Our hearts go out to to Austin and his family."
The theme park is working with county authorities and the U.S. Occupational Safety and Health Administration in the investigation.
"The safety of our cast and our guests is legendary and it's our top priority," Griffin said. Disney World calls its employees "cast members."
The monorail was shut after the accident, Griffin said.
Images from the scene showed the front car of a train badly damaged where it hit the other train at a station.
That's really sad news. Walt Disney World does have a very good safety record, though, considering this was the first deadly monorail crash in its entire 38 year history. There must have been some computer error, because I know that the monorails have a safety system where emergency brakes are automatically activated if two trains come too close to each other. Everyday they have to test this by driving two monorails towards each other.
I found this link on TPR that shows a video taken minutes after the crash. You can see the family that was riding the monorail. http://www.clickorlando.com/video/19956043/index.html
