INDIANAPOLIS -- A teacher and basketball coach at Pike High School has been arrested on charges of child seduction.

Sara L. Strahm, 28, was arrested on Friday in connection with an incident involving a 17-year-old girl, said Sgt. Paul Thompson.

The investigation began a week ago when school officials notified police about an allegation of sexual misconduct against Strahm.

Police said Strahm had been in a relationship with the girl since this fall.

"The child seduction charge is based on the fact that the coach is in a position of trust because she was involved in a sexual relationship with a student under the age of 18," Thompson said.

Strahm, a special education teacher at the school, is the varsity girls' basketball coach.

School officials would not confirm if the girl involved was a student or a basketball player, but said Strahm had been placed on paid administrative leave.

Some parents said they were concerned by the allegations.

"A lot of these parents work a lot of hours, and a coach is like a second family," said Joe Johnson. "When you get that trust and you break that, it's really disturbing."

Police urged anyone with more information to come forward.