KATY, Texas – The Katy Independent School District fired a drum teacher after she lost her phone and students who found it distributed inappropriate images from the device.

The percussion instructor’s phone was not locked when she lost it at the beginning of the year, and students who found it opened her photo gallery to find the private, “inappropriate images,” school officials told KTRK.

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Multiple students took pictures of the private images with their own phones and sent them to other students earlier this month, according to KHOU.

“On September 15, 2016, Katy High School administration became aware of inappropriate photos belonging to a contracted instructor, not employed by Katy ISD, circulating among students,” the district said in a prepared statement.

“Katy ISD’s Human Resources and Police Department immediately investigated and determined the photos were located on the instructor’s personal cell phone, where she lost shortly before the start of the school year and was recovered by students,” it continued. “The students who distributed he contracted instructor’s inappropriate photos are being disciplined according to the Student Code of Conduct, and the contracted instructor, who was removed from the classroom on September 15, will not be returning to the District.”

The percussion instructor was paid by the school’s band booster club. She’s now banned from working with any students in the school district, KTRK reports.

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“It’s disrespectful to go through an adult’s cellphone,” an unidentified student told the new site. “The kids were wrong, but she should have a lock on her phone, those pictures shouldn’t be there either.”

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School investigators identified four students involved in the incident and are currently examining phone logs to determine exactly how the photos were distributed. Others who forwarded the photos could also face discipline, though it’s unclear if any students will face criminal charges.

KTRK’s legal analyst, Joel Androphy, contends police could potentially use the state’s “revenge porn statute” to pursue criminal charges depending on the specifics in the case.

The incident is very similar to an episode at a Career and Technical Center in Union County, South Carolina in March. Teacher Leigh Anne Arthur was given an ultimatum by school officials to quit or face termination after a student swiped nude images from her unlocked cell phone as she supervised students between classes, WSPA reports.

“He opened up my gallery for my pictures and he found inappropriate pictures of myself and he took pictures from his cell phone of that and then he told the whole class that he would send them to whoever wanted them,” Arthur said. “The student who actually took my phone and took pictures turned around and told me your day of reckoning is coming.”

The 16-year-old student in that case was eventually charged with two felonies: computer crimes for accessing Arthur’s phone without permission, and aggravated voyeurism for sending the images to others.

Arthur, who had worked in the district since 2003, filed a lawsuit against her former employer for “injury to reputation, mental suffering, and emotional distress” over the incident.

“When you look at the policies that are in place for teachers, there was not a single policy that Leigh Anne violated,” Arthur’s attorney, Jessica Salvini, told WPSA in April.