Walt Disney World officials said it is installing metal detectors at all of its Orlando theme parks.
Officials said security has been a big concern following recent attacks in Paris and San Bernardino, California.
Disney said it will randomly select guests to be scanned by metal detectors.
The park is banning people older than 14 years old from wearing costumes, Disney officials said.
Disney is also discontinuing the sale of toy guns, including toy blasters and squirt guns on Disneyland Resort/Walt Disney World property, and are no longer permitting these items to be brought into the theme parks.
Park officials said there have also been more deputies and security guards on the premises and specially trained dogs have been patrolling key areas.
Many tourists said they agree with the addition.
"For safety reasons, I think it's good. You know, I think we'd feel safer because I don't think we're safe anywhere in the world now, you know? So yeah, I think it's good," said tourist Renato Scorvino.
AMC Movie Theater at Disney Springs, where Thursday night's premiere of the new "Star Wars" movie takes place, will also have one metal detector.
"I think it's whatever keeps everybody safe is what's in the best interest. So, I understand what they're doing and I would agree with it. It's for everybody's well-being," Hunter's Creek Resident Anne Erpelding said.
Sea World said guests should expect bag checks and metal detector checks.
Universal Orlando said its testing metal detector scans of guests and it's already been doing that for Halloween Horror Nights and other special events.
A man was arrested by deputies who said he tried to bring a gun inside the Magic Kingdom last weekend.
Disneyland in California will also get metal detectors.
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