PROSPECT PARK — The former substitute teacher accused of sexually assaulting four students has been indicted, authorities said.

Linda Hardan, 21, of Prospect Park, was charged in the indictment Friday with one count of first-degree sexual assault, two counts of second-degree sexual assault, two counts of second-degree endangering the welfare of a child, two counts of third-degree endangering the welfare of a child and one count of fourth-degree criminal sexual contact for allegedly sexually assaulting four students, Passaic County Prosecutor Camelia M. Valdes said in a news release.

Two of the students were from Manchester Regional High School and the other two were from Haledon Public School, Valdes said. Hardan, a Manchester Regional alum, worked as a substitute teacher at these two schools during the fall of 2014, she said.

Hardan was employed by Passaic County Education Services Commission, which provides substitute teachers to the district.

Assistant Prosecutor Gyselle Da Silva said the ensuing investigation into the alleged sexual assault of a 16-year-old student revealed that Hardan also sexually assaulted a 14-year-old middle school student at an undisclosed location in Paterson early in November.

The substitute teacher, a Manchester Regional alum, previously posted $200,000 bail related to the initial charges last week and was re-arrested Friday, Dec. 5. The latest charges include aggravated assault, sexual assault and child endangerment.

The 14-year-old is a student at another North Haledon public school Hardan worked as a substitute teacher, according to Da Silva. Hardan had been hired by the Passaic County Education Services Commission and not the North Haledon school district or Manchester Regional High School District.

Aggravated sexual assault carries a potential penalty of up to 20 years in state prison, while sexual assault carries a penalty of up to 10 years.

As previously reported by NJ Advance Media, Hardan was arrested this past November on charges that she sexually assaulted a 16-year-old boy.

The investigation later found more alleged incidents of sexual assault involving a middle school student.

Justin Zaremba may be reached at jzaremba@njadvancemedia.com. Follow him on Twitter @JustinZarembaNJ. Find NJ.com on Facebook.

