Police charged a 14-year-old Ohio boy Tuesday after he threw a lit firecracker hidden inside a glue stick at a teacher last month in retaliation for issuing him a suspension.

The Akron student is facing a charge of inducing panic for the Oct. 12 incident.

Police said the former North High School freshman tossed what was possibly an M-80 carved into a glue stick toward his teacher’s desk, but the explosive didn’t detonate. No one was injured.

"We are fortunate. Sometimes you're fortunate. In this case, it didn't explode," Akron Public Schools spokesman Mark Williamson told News 5 Cleveland.

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Authorities also discovered a note on the firework that included the teacher’s name along with the words “You will pay” and “School Shooter.”

School officials later discovered that the boy had threatened to kill the teacher and bring “a grenade to school and blow it up.”

According to News 5 Cleveland, school officials didn’t notify parents and some students weren’t aware of the incident. One student told the station that “students should know what's going on in their school.”

Williamson defended the lack of notifications, calling it a “judgment call.”

The student in question was suspended for 10 days and no longer attends North High School.

He has a hearing in Summit County Juvenile Court scheduled for Dec. 7.

The Associated Press contributed to this report.