CLARKSVILLE, Ind. (WDRB) -- A Clarksville High School teacher remains out of the classroom, and he is now the focus of a criminal investigation.

The teacher is accused of sending and requesting inappropriate messages and images from one of his female students.

We're told the girl's parents eventually found out and went to police. That's what led to the investigation and the teacher being suspended from his job at Clarksville High School.

No one from Clarksville High School will talk on camera about the suspension or the allegations against the teacher, but Superintendent of Clarksville Community Schools Kim Knott did release a statement.

"The Clarksville Police Department informed me this week of an investigation into allegations of inappropriate electronic communication between a teacher at Clarksville High School and a student," the statement said. "The teacher was immediately removed from the classroom and suspended. We have begun our own investigation into the matter."

Right now, Clarksville Police won't talk on camera about the case, but they have confirmed this is a criminal investigation. They've also subpoenaed the teacher's text messages, social media account and his computer.

Police say the student's parents are cooperating with the investigation and have also given them access to the girl's cellphone and accounts.

Meanwhile, because there are not currently any charges, the teacher's name has not been released, but the superintendent did send an email to parents.

"I want to assure you that we are taking this situation very seriously and we hold our staff to high standards," the email states. "We will not condone any inappropriate behavior. The safety and well-being of your child is our top priority. While this is a personnel matter, I am communicating this news with you in an effort to be transparent and to let you know this matter has our full attention."

A spokesperson from the Clarksville Police Department also told us they hope to have the investigation wrapped up by Monday and determine if it should move forward.

Even if there are no criminal charges, the teacher could still face a civil lawsuit and punishment by the school -- all based on the alleged conversations between the two.

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