A 29-year-old para-educator with the Elk Grove Unified School District and former Sacramento State student was arrested on suspicion of molesting six children over the course of a year, police said in a news release Friday.

Eric Ernest Echols, of Sacramento, was arrested for an outstanding felony warrant on Friday following a months-long investigation of allegations of inappropriate conduct between Echols and six children between the ages of seven and eight years old. The incidents were reported to have occurred between July 2015 and June 2016, according to the Sacramento County Sheriff’s Department.

The Elk Grove Unified School District was notified of the allegations in July of 2016, and immediately placed Echols on administrative leave pending the investigation, police said.

Echols was booked into the Sacramento County Main Jail and is being held in lieu of $900,000 bail. He is scheduled to be arraigned in Sacramento Superior Court on Tuesday.

Echols had worked with the Elk Grove Unified School District since 2014, most recently as a teacher’s aide at Prairie Elementary School. He was also a substitute teacher for other schools in the district.

Police are asking anyone with information relating to this incident to contact the Sheriff’s Department at (916) 874-5115 or Crime Alert at (916) 443-HELP.