PINELLAS COUNTY, Fla. (WFLA) – St. Petersburg police have arrested a Gulfport dance instructor after investigators say he had an inappropriate sexual relationship with a 15-year-old student.

Police say 52-year-old Servy Gallardo was charged Monday with four counts of lewd and lascivious battery and one count of lewd and lascivious molestation.

According to the St. Petersburg Police Department, Gallardo teaches at the St. Petersburg Ballet Conservatory, located at 1500 58th Street S in Gulfport.

Police say detectives are concerned that there could be more victims.

“Oh my God, I didn’t know that, honestly. When I see the person, it’s just a normal speak. He keeps quiet,” said Carl Grimes, a grandfather who lives next door to Gallardo.

“I never would have known, if you guys hadn’t mentioned it, I never would have known,” he said.

He says he’ll watch his grandkids closer now.

According to Gallardo’s Facebook page, this longtime ballet instructor is marred with a little girl. News Channel 8’s Melanie Michael tried to speak with his family members, however, no one answered.

“We know this man had access to young girls. Here’s a man who’s 52 years old …..we’re concerned there could be more victims,” said Yolanda Fernandez with St. Pete PD. “We want parents to talk with their children. You’re dealing with the most vulnerable of victims. These are children. Even if they’re girls in their teens, they’re no match for a man in his fifties.”

If you have any information or know someone who has been victimized by Gallardo to call the SPPD at 727-893-7780.