ORLANDO, Fla. -- Walt Disney World will be testing metal detectors after hours at its theme parks, sources told Local 6 News Thursday.

Although security was increased at Disney parks after the Sept. 11 terrorist attacks, only open-bag security checks are currently performed at the entrances to theme parks.

Security experts familiar with the story told Local 6 News that the move is a critical development in Disney's security agenda.

One of the possible tests at the parks could include how potential interference from Disney's monorail systems would affect magnometers, according to the report.

Disney executives would not confirm or deny the testing on park grounds. However, a U.S. Secret Service spokesman said major corporations around the world are testing new security technologies.

"Disney, being the leaders in their field, is always willing to try and experiment with the latest advances to enhance the experiences of their customers," U.S. Secret Service spokesman Robert Flaherty said.

Donna-Lynne Dalton, recording secretary for Teamsters Local 385, which represents costumed characters at the parks, said she thought using metal detectors was a good idea.

"I'm surprised they don't already do that," Dalton said. "I mean they have them in schools."

Visitors may feel more secure in the parks if metal detectors are used, said Joe Condo, president of the Service Trades Council Union, a coalition of unions which represents Disney workers.

"Security is good," Condo said. "It makes people feel confident."

Local 6 News reported that possible security testing at the parks was not prompted by any new threats against Disney.

Watch Local 6 News for more on this story.