A portion of Walt Disney World's Magic Kingdom, including some rides in Tomorrowland, was evacuated Saturday night because of a prank call.

The Orange County Sheriff's Office would not specify what was said in the call.

Deputies said the evacuation was precautionary and lasted for a couple of hours.  The affected areas reopened before the park closed.

Other parts of Disney World, including the rest of the Magic Kingdom, were unaffected, Orange County deputies said.

Officials said they do not yet know where the call originated.

No charges have been filed, but an investigation is ongoing.