PINELLAS COUNTY, FL (WFLA) – A Tae Kwon Do instructor is under arrest on molestation charges after detectives said he inappropriately touched two girls under 10 years of age. Andrew Jim Kim, 23, is accused of lewd and lascivious molestation of the girls, ages 6 and 7.

The investigation started when one of the girls told her mother she had been inappropriately touched. The mother called the Pinellas County Sheriff’s Office and that led to the second alleged victim.

Investigators said Kim touched the girls sometime between 2014 and 2015 when they were undressed at Oh’s Tae Kwon Do. He told them to keep it a secret, according to the Pinellas County Sheriff’s Office.

“Yeah, this is shocking,” said a parent picking up his 7-year-old son at Oh’s Tae Kwon Do in Seminole.

“I’m so glad that they caught him and he’s in custody now,” said Richard Oh, a Tae Kwon Do master and the owner of the studio. “Never knew he would do anything like that … Never expected it.”

“We teach our students to protect themselves from people like this,” Oh added.

Oh said his concerns are with the alleged victims, their families and the rest of the families who attend the studio.

Parents like Diana Gomez said this is a sad and painful lesson, one that she has already taught her children.

“If anybody touches you that you don’t want them to touch you inappropriately, what do you do?” she asked her daughter as the two stood together outside the studio.

“Tell mommy,” the daughter said.

As for the facility’s future, Oh said he may close it even though it’s been open since 1988.

“I think it’s very unfortunate for the community and anything that happened here,” one parent said. That parent said his trust in the studio is not lost.

Investigators said Kim confessed. He was arrested Friday and is charged with two counts of lewd and lascivious molestation.

Detectives said he may have had contact with other children when he was the instructor. If you have any information regarding this investigation or any other potential victims, please contact Detective M. Kolenda with the Crimes Against Children’s Unit at (727) 582-6200.MORE STORIES: – DISTURBING: Man kidnaps, beats, rapes woman with sharpened object, deputies say – Clearwater doctor accused of sexual battery against patient, nowhere to be found – ‘Bonnie and Clyde’ couple captured in Florida after crime spree spanning four states