BALTIMORE COUNTY, Md. (WJZ)– It has happened again. There are reports of students engaged in inappropriate sexual acts, and this time, it happened in a school during class.

Mike Schuh has the details.

READ MORE: 'The School Shouldn't Be Open Right Now': Parents React To COVID-19 Outbreak At Cherry Hill Elementary Middle School

Baltimore County Police showed up at Milford Mill Academy Thursday. Three students are charged with a perverted sex act and indecent exposure.

Police say it happened in the auditorium while class was in session. They say three students were involved in a sex act while a substitute teacher was in the room.

“Throughout the school, everybody talks. Everybody talks,” said one person.

The three range in age from 15 to 17.

Students say someone videotaped the act and posted it online. But police haven’t found the tape yet.

“It gives a very bad name to the school. And to young females like me,” said a student.

READ MORE: Almost 9,000 Vaccinated Marylanders Get Additional Shots Since Approval of Pfizer Booster

Baltimore County school officials tell WJZ they are cooperating with the police investigation. They say once the investigation is complete they will take the appropriate disciplinary action if necessary.

Just last Friday, a tape — blurred to protect the identities of those involved — popped up on the web. It shows students from Douglass High School engaging in a sex act on city school property.

“If they’re doing this kind of behavior, I think these are children in need of treatment,” said child psychologist Dr. James Dasinger. “In need of help in some matter shape or form.”

Dasinger says schools need to monitor students more closely. Communication is also key.

“Having parents involved, having the teachers involved, getting together and bringing this out in the open,” he said. “And see what’s wrong.”

Baltimore County Police say they believe the incident at Milford Mill was consensual.

MORE NEWS: 'We're The Cure To This Situation': 9 Killed, 13 Wounded In Baltimore Over The Past Week

Baltimore City Police continue to investigate the incident involving Douglass High School students. That happened outside a building not used for instructional purposes.