An elementary school teacher in Nashville was arrested Monday for making child pornography on school grounds. Jarrett Jones, 30, an assistant band director and former teacher at Napier Elementary school, secretly filmed the minors in the school’s music room using a tiny recording device, WSMV reported.

The videos were taken from a folder on the hard drive titled “Napier” at his home in Antioch, Tennessee. During a police interview, Jones revealed that he had recorded around 20 students. Once the hard drive was obtained, police stated they were at least 40 different young girls in the footage. An investigation began earlier this month and Jones was placed on administrative leave around that time, according to The Tennessean.

Police described one video showing a young girl being led into the music room closet by Jones where she was given a choir shirt to try on. After Jones leaves the room, the girl changes into the shirt. He then takes her back to the closet where he is seen speaking with her. Once he leaves, the girl removes the training bra she is wearing then puts the choir shirt back on.

Jones was arrested on two counts of especially aggravated sexual exploitation and three counts of sexual exploitation of minors, Metro Police spokesperson Don Aaron told The Tennessean. His bond was set at $100,000 and he may be charged with additional counts, according to WKRN. Jones is slated to appear in court Wednesday. 

Jones, who had previously worked as the school’s music teacher from 2011 to 2015, had recently become the assistant band director at Antioch High. He had graduated in 2004 from Antioch High and attended Cumberland University.