CLIFTON - A Clifton High School teacher accused of having a sexual relationship with a 16-year-old student pleaded not guilty to sexual assault charges.

Kristin Leone is charged with sexual assault, endangering the welfare of a child, two counts of criminal sexual contact, luring and enticing a child, and two counts of official misconduct. The 26-year-old was arrested last week.

Prosecutors say Leone engaged in sexual conduct with the child on two separate occasions; once in a classroom and once at her home.

Leone has been suspended with pay while authorities conduct an investigation.

The case will now be referred to a grand jury. Leone has been ordered not to have contact with the victim. She also cannot have unsupervised contact with anyone under 18.

Clifton H.S. teacher arrested on sexual assault charges