The incident happened back in November, but was only recently reported by local station WSYX.
According to a police report obtained by WSYX, three students between the ages of 12 and 13 smeared banana on the door of the teacher's classroom during lunch, then later threw the fruit at her.
The teacher, who was not identified, went into anaphylactic shock within minutes,the report states.
The students all knew of the teacher's allergy, according to the police report. A sign on the teacher's classroom door warns that it is a "banana-free zone" and asks students to wash their hands thoroughly should they touch the fruit.
"All of the kids know she's deathly allergic to bananas," a Columbus City Schools security officer at the school told responding officers in a moment captured on bodycam video. "If it touches her, she will go into anaphylactic shock."
The security officer added that when the teacher began having trouble breathing, they administered an EpiPen, but when that didn't work, they had to give her another.
"Her throat was starting to close up," the security officer said.
She was taken to the hospital, where she fortunately recovered.
The three students involved were reportedly sentenced to probation in juvenile court, according to WSYX.