"A mother asked her boyfriend to watch her 4-year-old son, who was playing in a bounce house with several other children while she went to the restroom," said Orange County Sheriff's Spokesman Jim Amormino. "When she came out of the restroom, she noticed that her son was no longer in the bounce house."
Investigators say the mother saw two men walking away from the area, one of them carrying her son.
"She ran up to the two men, asked what they were doing," said Amormino. "They made up some story, like, 'Oh, we're taking him to the restroom,' which doesn't make sense because the restroom was right next to the bounce house."
The mother grabbed her son from them and the men left. It happened in area number 4 of the park on Saturday before 2:30 p.m. during the mother's company picnic. More than 100 people were there.
"It's very scary, very scary," said Orange resident Lisa Silva. "We'll keep a closer eye on our kids."
Authorities are checking to see if any registered sex offenders match the suspects' descriptions.
One suspect was described as Pacific Islander or white, about 5 feet 8 to 5 feet 10 inches tall, between 45 and 50 years old. He has short salt-and-pepper-colored hair and was wearing an orange button-up shirt at the time.
The second suspect was described as a white male, about 5 feet 8 inches tall, about 45 to 50 years old, with a medium build and short brown hair. He was wearing casual clothes.
Authorities say it's a reminder to parents to watch their kids carefully.
Some parents are also using the incident as an opportunity to talk with their children.
"The parents have to talk to the kids too, not just to go with anybody even if they say that they know them or they're going to meet their mother at the car, stuff like that," said Orange resident Servando Silva. "You've got to be able to know they can't go with anybody."
If you have information related to this case, you're asked to call the Orange County Sheriff's Dept. at (714) 628-7170.