AMES, Iowa (AP) – A former teacher in the North Polk Community School District has been accused having a sexual relationship with a teenage student. Twenty-nine-year-old Kevin Muehlenthaler, of Ames, was arrested Wednesday. Court records say he’s been charged with four counts of sexual exploitation by a counselor or therapist.

Authorities say a woman told police she had a relationship with Muehlenthaler between November 2013 and July 2014 when she was a student of 16 and then 17 years old.  The district says Muehlenthaler was employed August 2013 to June 2016 and that the district became aware of the allegations only after he left the district.