Police are investigating a possible sexual assault case involving two juvenile students at Montclair High School.

Police Lt. David O’Dowd confirmed Wednesday the police are investigating a recent report of sexual assault at the high school involving two minors. He said that the incident was reported to police at 3:18 p.m. on Monday, and that the Essex County Prosecutor’s Office is involved in the investigation.

Prosecutor's office spokesperson Katherine Carter said as of Wednesday no one had been charged, and that the office was unable to release any additional information.

An email from Montclair High School Principal James Earle was sent to parents on Wednesday stating, there is an "ongoing investigation regarding an alleged sexual assault."  The alleged incident took place in the school’s all-gender restroom, according to the email.

“The safety of our students is of primary concern. While the matter is being fully investigated, we have increased security in the building," Earle said in the email.

Authorities did not specify when exactly the incident was alleged to have taken place.

The district could not release additional information at that time. “However, the district remains committed to ensuring that the Montclair Public School system remains a safe and welcoming place for all students.”

This is a developing story. Follow the Montclair Local for more information.