BRIDGEVIEW (CBS) – A Bremen High School substitute teacher is accused of fondling a student and making sexual advances toward two others.

Ross Larson, 25, of 816 Western Ave., New Lenox, was charged Thursday with aggravated criminal sexual abuse and indecent solicitation of an adult, a Cook County state’s attorney spokesman said. His bail was set at $20,000 Friday.

The victims are three female students, aged 16, 17 and 18, the state’s attorney spokesman said.

Cook County Circuit Judge Darron Bowden attached special conditions to Larson’s bail. Larson is not to have any contact with the victims or with Bremen High School. He is also not to have contact with minors who are not family members.

Larson was taken into police custody Wednesday.

Bremen Community High School District 228 Supt. Bill Kendall said Friday that Larson had been with the district less than a year as a day-to-day substitute and the freshman boy’s basketball coach. District officials became aware of possible inappropriate behavior several weeks ago, Kendall said, and turned the matter over to police to investigate.

At the time the district contacted police, Larson was put on leave from coaching and was not asked to substitute.

Midlothian Police Chief Vince Schavone said he believed authorities were alerted when one of the victims told her parents, who then called school officials and police.

Contributing: Sun-Times Media Wire