A Charleston Police Department patrolman was arrested Tuesday after the state police were told to investigate his alleged sexual assault of a 17-year-old female.

According to an Illinois State Police press release, Illinois State Police Zone 5 special agents were assigned to the case of David N. Iwaniw, 33, of Charleston.

Lt. Brad Oyer of the CPD said the state police is handling the case and that it would be improper for him to comment on the case.

“The only thing I can say by law is that he was employed here, and he’s been employed here for over six years,” he said. “What I’ve heard is by word of mouth, and I’ve seen no official report.”

When contacting the Illinois State Police, an officer said no one was able to comment because they were dealing with the weather conditions Thursday.