SANDUSKY, Ohio (AP) — A longtime school resource officer who used a stun gun on two high school students during a self-defense training class has been fired.

Perkins Township trustees voted 3-0 Monday to dismiss Tonya Corbin, who was a resource officer at Perkins High School. She had been on unpaid leave since June 15.

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Corbin was teaching a self-defense class for female students at the school on May 19 when she brought a stun gun to the class and used it on two students, ages 17 and 18, authorities said.

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Corbin initially denied using the stun gun, saying she had allowed the students to use it themselves. The two students and a teacher at the school disputed that claim, and Corbin eventually admitted to deploying the stun gun, authorities said.

The self-defense class had been provided to students in the past, but this was the first time Corbin was leading it, officials have said.

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