Two monorails carrying several people collided at about 2 a.m. Sunday (July 5) at Disney World in Orlando, Florida. Only one of the train operators was killed in the crash but his name hasn’t been released yet. The other monorail operator and the guests have not been seriously injured.

Walt Disney World vice president of public affairs Mike Griffin issued the following statement: “Today, we mourn the loss of a fellow cast member. Our hearts go out to the family and fellow cast members who lost a coworker and a friend. Safety of our guests and cast members is our top priority. We will work with law enforcement to determine what happened.”

The monorail has been closed, and an investigation into the fatal accident is under way.

Disney Monorail Crash Pictures