Authorities say a teacher at a middle school in Malad has been charged with four felonies related to inappropriate sexual conduct with minors.

Court records show Sid Arthur Campbell has been charged with three felony counts of lewd conduct with a child under 16 and one other felony count of sexual abuse of a minor. He is being held in the Twin Falls County Jail on $75,000 bond.

The Idaho State Journal reports the charges stem from encounters dating back to February. He was arrested on warrants issued by Twin Falls County.

Campbell has been teaching special education students at Malad Middle School.

Campbell is scheduled to appear in state court for a preliminary hearing Dec. 20.