LADERA RANCH, Calif. (KTLA) — The mother of two boys who were confronted by a knife-wielding man at a park in Ladera Ranch is speaking out about the incident.

Officials have released security video of a man riding away from Founder’s Park.

They think he is the one who approached twin 12-year-old boys there on Sunday evening.

“Oh, I’m terrified by it,” says the boys’ mother, who spoke to KTLA but did not want to be identified.

She says that her boys went to the park around 6:30 p.m. to skateboard for a half an hour before dinner.

“About 7, I got a call. If I remember right, it was a man, and I could hear my son Connor — one of my twins — just screaming, crying in the background,” she recalled.

“My husband took the call, and he says like, ‘What? What? What?’”

She says that she and her husband dashed to the nearby park to find out what had happened.

She tells KTLA her son said they were on the swings when they were approached by a man.

“A man came behind Zachary and had a knife, pulled him off the swing, dragged him like 10 to 15 feet, told him to take off his pants and his shoes and then told him to bend over.”

She says that Zachary handed over the items, and then kicked wood chips at the suspect to distract him in order to get away.

“As this is happening, my other twin Connor, he had run when the guy pulled Zachary,” she explained.

Connor ran to flag down a passing car in the street, where his brother Zachary soon joined him. Many cars began stopping to help them.

Their mother says she finds it odd that the suspect kept her son’s pants. She says she hopes police can get him off the streets before he strikes again.

The suspect is described as being in his late teens or early 20s.

The boys said he was wearing a blue hooded sweatshirt, blue jeans, sandals and a red bandana to cover his face.

Anyone with information is asked to contact Orange County sheriff’s officials at 714-628-7170.

–Mary Beth McDade, KTLA News